Answer:
The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that make pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the uterus to receive a fertilized egg. These cycles are concurrent and coordinated, normally last between 21 and 35 days in adult women, with a median length of 28 days, and continue for about 30–45 years.
It basically prepares you to have a baby!
Feel free too ask questions.
Explanation:
You don’t have to answer all of them just the ones you know. Will give brainliest if you help
Answer:
1,A. Earth
2,G. Mercury
3, B Mars
I’m very much confused
Answer:
Explanation:
BBBBBBBBB
Answer:
The answer is D
Explanation:
If a region on earth has a TEMPERATE climate, which of the following
statements will be true about that region?
O The temperature is usually warm and it rains often.
O
The temperature is usually cold and it rains or snows often.
The temperature and rainfall change at different times of the year.
The temperature is usually cold and there is very little rainfall.
Answer:
The temperature and rainfall change at different times of the year.
Explanation:
A temperate climate region is a territory in which the climate cannot be classified as completely hot or cold, nor rainy or dry, but these characteristics are variable according to the season of the year in which it is found. Thus, these climates do not have extreme heat or cold temperatures, but rather moderate climatic conditions. An example of a region with a temperate climate is the Mediterranean region, the State of Georgia in the USA or Uruguay.
Suppose you are tasked with determining the protein content of several new cultivars of genetically-enhanced black beans. Which of the following reagents would be particularly useful for your protein isolations?
a) detergent
b) salt
c) cold water
d) acetone
Answer:
The answer is "Choice d".
Explanation:
It is usually used to produce plastics as well as other industrial goods as a solvent. It also is to some extent used throughout the composition of nail polishes in household products, including cosmetic and personal care products. Its separation of proteins form of the plants is a tough process due to the thick cell wall. It is widely used for the precipitate and insulation of proteins. Since it is a relatively cheap substance, this is often employed for protein isolation.
What are the PRODUCTS in photosynthesis?
[A] Carbon dioxide (CO2) water (H20), and ATP
[B] Carbon dioxide (CO2), water (H20), and sunlight
[C] Glucose (C6H12O6) and oxygen (O2)
If you pressed a stethoscope diaphragm firmly on a volunteer's skin at the following locations on the right side of the body: Inferior to the clavicle (this is the 1st intercostal space) In a more inferior intercostal space Along the medial border of the scapula What type of sounds are you listening for
Answer:
The correct answer is - Vesicular Breath Sound.
Explanation:
The vesicular breathing is lower-pitched and soft where expiration is shorter than inspiration and there is no pause between expiration and inspiration. It can be heard through the thorax and with a stethoscope around the lungs or the thorax inferior to the clavicle, medial border of the scapula, and intercostal space. It can be heard with each expiration around the lung area.
Thus, The correct answer is - Vesicular Breath Sound.
Name a food that people eat that would make them a tertiary consumer
Answer:
By eating foods such as grain-fed chicken, a person would fill the role of secondary consumer, however, if that chicken is also able to eat insects the person is a tertiary consumer.
Explanation:
During photosynthesis, producers convert (change) light energy into:
[A] Mechanical energy
[B] Physical energy
[C] Chemical energy
[D] Light energy
Plants contain the carbohydrates starch and cellulose. in the spring when stem growth is at its fastest rate, cellulose production rates are
increased in some plants. In the months with less sunlight, the level of starch decreases in some plants. What does this information
demonstrate?
Answer:
The correct answer is - Two functions of carbohydrates are structural support and energy storage.
Explanation:
In plants there are normally two carbohydrates are produced are starch and cellulose that have similar molecular structures but their biological function is drastically different.
Cellulose is used as a structural unit of the plant cell wall, its production rates increase during the growth of the plant during spring. starch is a carbohydrate that stores energy reserve that builds up during a sunny time and is consumed during wintery or less sunny days.
which is a kingdom in the eukaryote domain
Answer:
animalia
fungi
protista
plantae
Plz help me a b c or d
Answer:
C
Explanation:
I'm an astronomy nerd so i understand this stuff
2. Place these steps in the correct order to explain
how carbon moves between the atmosphere and
the biosphere in the carbon cycle.
a. Organisms carry out cellular respiration,
which converts glucose and oxygen to
carbon dioxide and water.
b. Plants use water and carbon dioxide
from the atmosphere to make glucose
and oxygen through photosynthesis.
c. Some animals eat plants and store
chemical energy from the plants in
their bodies.
d. Carbon dioxide is released by organisms
and moves into the atmosphere.
Answer:
The Carbon Cycle
Carbon moves from the atmosphere to plants. ...
Carbon moves from plants to animals. ...
Carbon moves from plants and animals to soils. ...
Carbon moves from living things to the atmosphere. ...
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Carbon moves from the atmosphere to the oceans
The carbon cycle is the movement of carbon between the atmosphere and the biosphere. Photosynthesis is the process by which plants use water and carbon dioxide from the atmosphere to produce glucose and oxygen.
What is carbon cycle?The carbon cycle, a biogeochemical process, exchanges carbon between the Earth's biosphere, pedosphere, geosphere, hydrosphere, and atmosphere. Carbon makes up the majority of biological substances as well as many minerals, including limestone.The carbon cycle describes the continuous movement of carbon atoms from the atmosphere to the Earth and then back into the atmosphere. Because our planet and its atmosphere form a closed system, the amount of carbon in this system remains constant.The Cycle of Carbon
→ Carbon is transferred from the atmosphere to plants.
→ Carbon is transferred from plants to animals.
→ Carbon is transferred from plants and animals to soils.
→ Carbon is transferred from living things to the atmosphere.
→ When fossil fuels are burned, carbon is released into the atmosphere.
→ Carbon is transferred from the atmosphere to the oceans.
To learn more about carbon cycle refer to:
https://brainly.com/question/12005308
#SPJ2
HELP ME PLEASE
What object is shown in this image?
a nebula
a red giant
a supernova
a neutron star
Answer:
d I think
Explanation:
Answer:
nebula
Explanation:
I believe it's a nebula
The formation of urea from ammonia takes place in the..........
Answer:
Liver
Explanation:
Organisms that cannot easily and safely remove nitrogen as ammonia convert it to a less toxic substance, such as urea, via the urea cycle, which occurs mainly in the liver. Urea produced by the liver is then released into the bloodstream, where it travels to the kidneys and is ultimately excreted in urine.
How do vaccinations provide protection against pathogens?
O Antibodies manufactured in a lab are injected into the patient. This
causes the release of antigens that will provide protection against
specific organisms.
O Shots containing antibodies are injected into the circulatory system.
These antibodies are transported to the cells where they are
needed.
O A dead or changed virus or bacteria is injected into the body. This
tricks the body into producing pathogen-specific antibodies for
future protection.
White blood cells are artificially produced in a lab and made into a
vaccine. This is then injected into the body to provide protection
against all organisms.
Which trophic level would have the highest population of organisms? WHY?
Answer: Decomposers,
Explanation: Because technically, they devour everything dead, and this is a very good question.
p.s. I'm new-
What type of data is one of several groups or forms?
categorical
qualitative
quantitative
tentative
Answer:
Categorical is the answer
Which event happens first when you get a splinter? A. The damaged tissue releases chemical messengers. B. The white blood cells produce antibodies. C. The damaged tissue swells and becomes painful. D. The white blood cells eat pathogens near the wound. SUBMIT PREVIOUS
A PCR-RFLP analysis was performed to identify PTC tasters in a population. The taster allele sequence included a palindromic sequence recognized by a restriction enzyme, whereas the non-taster allele did not due to a SNP in the sequence. The gel shows the results of the analysis from 100 individuals. The numbers above the gel lanes represent the number of individuals with each genotype.
Required:
What is the frequency of the non-taster allele in this population?
About the question:
You will find the gel image in the attached files
Answer:
the frequency of the non-taster allele is 0.315
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to the kingdom
A.
Fungi.
B.
Animalia.
C.
Protista.
D.
Plantae.
Compare and contrast ocean upwelling and spring and fall turnovers (similarities and differences.
Answer:
Similarity is the circulation of water and the difference is its location where it occurs.
Explanation:
Ocean upwelling is a phenomenon in which dense, cooler, and usually nutrient-rich water from deep water are moved by the wind towards the ocean surface, which replaces the warmer surface water while on the other hand, fall turnover is the time when the water temperature is uniform throughout the water body. Both ocean upwelling and fall turnovers are similar to each other due to circulation of water with the help of wind. Both ocean upwelling and fall turnovers occurs in different location, ocean upwelling occurs on the shore whereas fall turnovers occurs in every part of water body.
How does sexual reproduction bring about variation
Answer:
The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. ... A mate must be found, the egg must be fertilised by sperm, and then the offspring develop.
What are the REACTANTS in photosynthesis?
[A] Carbon dioxide (CO2), water (H2O), and ATP
[B] Carbon dioxide (CO2), water (H2O), and sunlight
[C] Glucose (C6H12O6) and oxygen (O2)
Answer:
[tex]\boxed {\boxed {\sf B. \ Carbon \ dioxide , water, and \ sunlight}}[/tex]
Explanation:
The reactants are the substances that go into a reaction. You begin with the reactants, then the reaction turns them into different products.
Remember, photosynthesis is a process that certain organisms, like plants, algae, and some types of bacteria, undergo to create "food". They actually produce glucose which serves as an energy source because it is converted into ATP during cellular respiration.
The formula for photosynthesis is:
[tex]6H_2O+6CO_2+ light \ energy \rightarrow C_6H_12O_6 + 6O_2[/tex]
or
[tex]water + carbon \ dioxide + light \ energy \rightarrow glucose + oxygen[/tex]
The reactants are the starting substances, so they are to the left of the arrow. Therefore, the reactants are carbon dioxide (CO₂) water (H₂O), and sunlight. Choice B is correct.
Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a D-amino acid. Trypsin, for example, cleaves on the CC-side of L-ArgArg and L-LysLys, but not on the CC-side of D-ArgArg and D-LysLys.
Answer:
Explanation:
A protease is an enzyme that catalyzes the hydrolysis of the peptide bonds that tie polypeptide chains together, releasing individual amino acid subunits. The L and D nomenclature for amino acids defines the structure of the glyceraldehyde isomer through which the amino acid can be produced.
SEE BELOW FOR THE APPROPRIATE STRUCTURES.
We need to figure out why swine proteases hydrolyze L-amino acids but not D-amino acids in any way. we know that enzymatic catalysts act as polypeptides if you can recall. They must retain a very precise three-dimensional structure for a catalytic activity to occur. Substrates that do not quite match the required configuration at the active site will not be reacted to — this is a "lock and key" style.
The present exercise may be explained by the fact that the configuration and structure of D-amino acids prevent them from binding properly to the active site of the protease enzyme. Perhaps they're pointed in the wrong direction, or perhaps there happens to be missing electrical interaction that's needed to keep the substrate in position.
Nonetheless, L-amino acids, on the other hand, seem to have the right configurational aspects in the active site and are hydrolyzed.
.......................................
Answer:
2
Explanation:
What happen while humans sleep?
Answer:
Many biological processes happen during sleep: The brain stores new information and gets rid of toxic waste. Nerve cells communicate and reorganize, which supports healthy brain function. The body repairs cells, restores energy, and releases molecules like hormones and proteins.
Explanation:
Hope this helped, have a good day/night!!
______ support mango trees out of the water.
a. tap roots
b. prop roots
c. sand dunes
d. tide supports
Answer:
B: Prop Roots
Explanation:
Got it right on Edge
The diagram shows the changes among the three states of water. Water vapor Deposition I Evaporation Ice Liquid water Freezing Energy absorbed / released by water Energy absorbed / released by water Describe and explain the processes, including the flow of energy, that occurs in the water cycle, starting as a water molecule in the ocean.
(NEED HELP ASAP) BRAINLIEST NO FAKE ANSWERS
1.A scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:
Organism A and humans share 85% of their DNA.
Organism B and humans share 80% of their DNA.
Organism C and humans share 90% of their DNA.
Based on this information, which order should they go on the cladogram (from least related to most related)?
(1 point)
A, B, C, humans
C, B, A, humans
C, A, B, humans
B, A, C, humans
2.A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis?(1 point)
Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.
Amino acid analysis of the cytochrome c protein shows significant differences in the sequence of amino acids between humans and gorillas.
DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.
The cells of the eye in embryos of gorillas and humans follow a similar pattern of development while chimpanzee embryos are different.
3.The forelimbs of bats and humans have a very similar bone structure even though they appear very different on the outside. These structures are known as __________ because they result from species evolving __________.
Which of the following answer choices correctly completes the above statement?
(1 point)
homologies; similar adaptations in similar environments
analogies; from the same common ancestor
analogies; similar adaptations in similar environments
homologies; from the same common ancestor
4.All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?(1 point)
The embryos of these species require these structures to survive.
These species evolved in similar environments.
These species have the exact same DNA sequence.
These species share a common ancestor.
5.Fossil A is found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?(1 point)
Fossil A is from an older species than Fossil B.
The species of Fossil A existed at the same time as the species of Fossil B.
The species of Fossil A evolved from the species of Fossil B.
Fossil B is most likely older than Fossil A.
6.Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity?(1 point)
All vertebrates require the same nutrients during embryological development.
All vertebrates develop a backbone that protects the spinal cord.
All vertebrates inherit the same sequence of DNA from their parents.
All vertebrates live in similar environments which require the same adaptations.
7.Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?(1 point)
The immune system repairs the mutated sequence during development.
The protein built from this mutated sequence is deactivated by the cell.
The mutated sequence still codes for the same amino acid.
The cell recognizes mutations and ignores them when expressing the gene.
8.What is typically studied when analyzing not-yet-born (or unhatched) animals?(1 point)
embryological development
evolutionary theory
causal records
DNA sequencing
9.What can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor?(1 point)
petrified bones and imprints of plants
DNA molecules
vertebrate embryos
life cycles and behaviors
10.How can embryos help scientists understand evolution?(1 point)
Embryos contain the code for all life on Earth.
Embryos go through various stages that suggest the animal’s evolutionary process.
Embryos provide evidence for which life forms existed at the same time.
Embryos are frequently fossilized and illustrate change over time.
11.Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1–2 sentences.(2 points)
12.In 1973, biologist Theodosius Dobzhansky wrote an essay titled “Nothing in Biology Makes Sense Except in the Light of Evolution.” Why is evolution so important for understanding biology? Explain your answer in 1–2 sentences.(2 points)
13.You are a scientist tasked with writing a journal article on the evolution of alligators. In 3–5 sentences, describe the different forms of evidence you might use to analyze the evolution of alligators.(4 points)
Answer:
scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:
Organism A and humans share 85% of their DNA.
Organism B and humans share 80% of their DNA.
Organism C and humans share 90% of their DNA.
Based on this information, which order should they go on the cladogram (from least related to most related)?
(1 point)
A, B, C, humans
C, B, A, humans
C, A, B, humans
B, A, C, humans
2.A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis?(1 point)
Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.
Amino acid analysis of the cytochrome c protein shows significant differences in the sequence of amino acids between humans and gorillas.
DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.
The cells of the eye in embryos of gorillas and humans follow a similar pattern of development while chimpanzee embryos are different.
3.The forelimbs of bats and humans have a very similar bone structure even though they appear very different on the outside. These structures are known as __________ because they result from species evolving __________.
Which of the following answer choices correctly completes the above statement?
(1 point)
homologies; similar adaptations in similar environments
analogies; from the same common ancestor
analogies; similar adaptations in similar environments
homologies; from the same common ancestor
4.All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?(1 point)
The embryos of these species require these structures to survive.
These species evolved in similar environments.
These species have the exact same DNA sequence.
These species share a common ancestor.
5.Fossil A is found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?(1 point)
Fossil A is from an older species than Fossil B.
The species of Fossil A existed at the same time as the species of Fossil B.
The species of Fossil A evolved from the species of Fossil B.
Fossil B is most likely older than Fossil A.
6.Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity?(1 point)
All vertebrates require the same nutrients during embryological development.
All vertebrates develop a backbone that protects the spinal cord.
All vertebrates inherit the same sequence of DNA from their parents.
All vertebrates live in similar environments which require the same adaptations.
7.Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?(1 point)
The immune system repairs the mutated sequence during development.
The protein built from this mutated sequence is deactivated by the cell.
The mutated sequence still codes for the same amino acid.
The cell recognizes mutations and ignores them when expressing the gene.
8.What is typically studied when analyzing not-yet-born (or unhatched) animals?(1 point)
embryological development
evolutionary theory
causal records
DNA sequencing
9.What can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor?(1 point)
petrified bones and imprints of plants
DNA molecules
vertebrate embryos
life cycles and behaviors
10.How can embryos help scientists understand evolution?(1 point)
Embryos contain the code for all life on Earth.
Embryos go through various stages that suggest the animal’s evolutionary process.
Embryos provide evidence for which life forms existed at the same time.
Embryos are frequently fossilized and illustrate change over time.
11.Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1–2 sentences.(2 points)
12.In 1973, biologist Theodosius Dobzhansky wrote an essay titled “Nothing in Biology Makes Sense Except in the Light of Evolution.” Why is evolution so important for understanding biology? Explain your answer in 1–2 sentences.(2 points)
13.You are a scientist tasked with writing a journal article on the evolution of alligators. In 3–5 sentences, describe the different forms of evidence you might use to analyze the evolution of alligators.(4 points
1. A cladogram is an evolutionary tree that diagrams the ancestral relationships amongst organisms.
The similarly alongside the cladogram you move,the greater variations in DNA the organisms have compared to the common ancestor.Final answer: The correct option is B,A,C,humans.
2. DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.
Final answer: The correct option is (c).
3. These structures are known as homologies because they result from species evolving from the same common ancestor.
Explanation for correct option:
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.Explanation for incorrect option:
Analogies structure are body parts that have a similar function but differ in structure.Final answer: homologies; from the same common ancestor.
5. All vertebrate embryos have a tail and gill slits at some point during embryonic development.
Vertebrates are similar in origin and that they develop similarly, implying that they are related, have common ancestors.Final answer: These species share a common ancestor.
5. Fossil B was found deeper in the ground than Fossil A.
Fossil A could not be older than Fossil B as it has settled for a shorter period of time, and is higher up to the surface.If the two species existed at the same time, they could be at same heights in the soil.Final answer: Fossil B is most likely older than Fossil A.
6.This shows that the vertebrates are similar in origin and that they develop similarly, implying that they have common ancestors.
In the embryonic stages, they all possess the ventral heart, aortic arches, gills and gill slits which are exactly like those of the fish embryo. Presence of tail at some stage of development. These observations support the idea of organic evolution.This similarity of basic plan is because of shared genetic material and those genes that are still the same among organisms.Final answer: All vertebrates develop a backbone that protects the spinal cord.
7. Mutations have no effect on the organism because they are repaired before protein synthesis occurs.
Silent mutations lead to a change of one of the letters in the triplet code that represents a codon, but despite the single base change, the amino acid that is coded for remains unchanged or similar in biochemical properties.Final answer: The mutated sequence still codes for the same amino acid.
8. Embryological develoment is typically studied when analyzing not-yet-born (or unhatched) animals.
Explanation for correct answer:
Embryology is a branch of science that is related to the formation, growth, and development of embryo.Explanation for incorrect answer:
The theory of evolution is based on the idea that all species are related and changes over time.DNA sequencing refers to the technique for determining the exact sequence of nucleotides, or bases, in a DNA molecule.Final answer: Embryological development.
9. DNA molecules can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor.
Molecular similarities provide evidence for the shared ancestry of life. DNA sequence comparisons can show how different species are related.Final answer: DNA molecules.
10. Embryology is important to understanding a species' evolution, since some homologous structures can be seen only in embryo development.
Embryos of organisms that have a closer genetic relationship to one another tend to look similar for a longer period of time since they share a more recent common ancestor.Final answer: Embryos go through various stages that suggest the animal’s evolutionary process.
11. A DNA analysis can help determine is the species is related to any other organism like on earth.
After isolating the DNA from its cells, specific regions are copied with a technique known as the polymerase chain reaction, or PCR. PCR produces millions of copies for each DNA segment of interest and thus permits very minute amounts of DNA to be examined.12. Evolution is a process of gradual change that takes place over many generations.
Evolutionary biology allows us to determine not only how and why organisms have become the way they are, but also what processes are currently acting to modify or change them.It helps us to understand the development of antibiotic resistance in bacteria and other parasitic organisms.13. The first alligator ancestors developed approx. 245 million years ago.
The main reason for the change in the body structure of alligator is due to change in environmental condition.DNA shows how related species are to other species.Fossils can be used to prove the existence of the evolution of alligators and to compare and contrast what they looked like in the past to what they look like now.you can learn more about evolution here:
https://brainly.com/question/26502157
#SPJ2
Which organisms are classified as carnivores?
a) algae, tadpole, raccoon
b) worm, snake, bacteria
c) raccoon, frog, snake
d) grasshopper, vacteria, frog
Answer:
it is c raccoon frog snake