PLEASE HELP ME OUT I NEED HELP
Answer:
2-1 switched
Explanation:
Which statement can be supported by the fossil record? (HINT:to be supported by the fossil record, you need evidence)
1. Humans have lived on earth throughout geologic history
2. The organisms on Earth have not changed
3. All plants and animals on earth today have always existed
4.Dinosaurs existed on Earth for more than 544 million years.
15. How does a mother's age affect the likelihood of her having a baby with Down syndrome?
A. The likelihood increases substantially after age 40.
b
The likelihood decreases substantially after age 40.
C. Age has no effect.
d The likelihood increases at first, then decreases after age 20.
Answer:
A
Explanation:
• Given a single strand of DNA, be able to determine the complementary
DNA strand.
Example-TATTTCCCGGTCGTAA
What is the complementary strand to this section of DNA?
Which pattem of wind flow is most likely to occur during a hot summer season in a coastal location?
А
From land to sea, toward areas of lower air pressure.
B.
From sea to land, toward areas of lower air pressure
С
From land to sea, toward areas of higher air pressure.
D
From sea to land, toward areas of higher air pressure
Answer:
B. From sea to land, toward areas of lower air pressure
Explanation:
The pattern of wind flow is most likely to occur from sea to land during a hot summer season in a coastal location due to difference of air pressure. In the summer season when the land is heated, the temperature of the air also increases and hot air rises up, as a result a region of low pressure is created at the surface. The air over the sea moves into this area of low pressure on the land. Hence, the direction of the wind is from the sea to the land during the day in summer season.
describe what the function of a water cycle is
Answer:
Explanation:
The water cycle shows the continuous movement of water within the Earth and atmosphere. ... Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).
The water cycle is critical to the environment because water is required for photosynthesis, drinking, soil fertility, agriculture, and a variety of other functions. So maintaining the water cycle is important for the environment.
What is the water cycle?The water cycle is important for the environment because it changes water from a liquid to a gaseous state using sunlight, and when the gaseous form cools down, a cloud forms that will later form the water and return back to the earth. From the earth, the water is stored in the water sources and used by plants, animals, and humans for different purposes.
Hence, the water cycle is critical to the environment because water is required for photosynthesis, drinking, soil fertility, agriculture, and a variety of other functions. So maintaining the water cycle is important for the environment.
Learn more about the water cycle here.
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If the sperm (haploid cell of an organism
contains 12 chromosomes, what would be the
number of chromosomes found in a regular body
(diploid) cell?
PLS HELP ASAP
Which form of fresh water is not readily available?
A) groundwater
B) ocean water
C) glacial ice
D) surface water
E) river dam water
Answer:
probably glacial ice
Explanation:
What is a lunar eclipse ( can someone write a paragraph pleasee) mark brainliest
A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned with Earth between the other two, and only on the night of a full moon.
The photosphere and chromosphere are typically described by which of the following characteristics?
A. the way in which energy travels through them
B. their plasma composition
C. their visible colors, such as red or yellow
D. their extreme depths relative to other layers
Answer: I think the answer us C
Explanation:
im sorry if im wrong! but hope it helps! Have a good day! ^v^
The photosphere and chromosphere are typically described by their visible
colors, such as red or yellow.
Chromosphere and photosphere are both layers of the Sun. The
photosphere is the visible surface of the sun which is characterized by a
yellow color.
The chromosphere is regarded as the layer found above the visible layer of
the sun(photosphere). They are made up of hydrogen and helium nuclei
which when ionizes produces a red color especially during an eclipse.
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What is one effect the hydrosphere has on the lithosphere 1).Erosion of rocks 2).Evaporation of water 3).Heating of the core 4).Melting of the core
Answer:
1).Erosion of rocks
Explanation:
Erosion of rocks has effect of hydrosphere on the lithosphere. When the river and streams passing through a region, the water eroded the rocks that comes in their way with the passage of time as well as the bank of the rivers. The speed of erosion depends on the speed of the flow of rivers because speedy flow of rivers causes fast erosion of rocks so we can say that the erosion is the main effect of hydrosphere on the lithosphere.
Sally has brown hair (B), which is dominant to blonde hair. In addition, she is short, which is recessive to tall (T). Which combination of genotypes best describes Sally?
Learning Task 2 Write the word true or false if the statement is correct and if false change the underline word or words to make a statement correct
Complete question:
Write the word TRUE if the statement is correct and if FALSE change the underlined word or words to make the statement correct.
_______1. A molecular group consisting of a sugar molecule, a phosphate group and a nitrogenous base is a nucleic acid.
_______ 2. In a DNA molecule, a base pair would be composed of adenine and guanine.
_______ 3. Cytosine and adenine are purines.
_______ 4. During the replication of DNA, bonds are broken between the phosphate groups.
_______ 5. RNA contains the nitrogenous base uracil.
_______ 6. There are 20 different amino acids in a cell.
_______ 7. The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts.
_______ 8. The decoding of a messenger RNA message into a polypeptide chain is known as translation
_______ 9. A severe mutation may lead to cell death and may have no effect on the body.
_______ 10. Most mutation are harmful.
Answer:
FalseFalseFalseFalseTrueTrueFalseTrueTrueFalseExplanation:
_False_1. A molecular group consisting of a sugar molecule, a phosphate group, and a nitrogenous base is a nucleic acid.
Nucleotides: subunits or monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base. The chain or sequence of nucleotides composes the polymer. Different nucleotides joined by their extremes compose the nucleic acid: DNA or RNA.
A molecular group consisting of a sugar molecule, a phosphate group, and a nitrogenous base is a nucleotide.
_False_ 2. In a DNA molecule, a base pair would be composed of adenine and guanine.
In the DNA molecule, Adenine (Purine) always pairs with Timine (Pyrimidine), while Guanine (Purin) pairs with Cytosine. A-T pair is united by 2 hydrogen bonds, and the G-C pair is united by 3 hydrogen bonds.
In a DNA molecule, a base pair would be composed of adenine and timine, or In a DNA molecule, a base pair would be composed of cytosine and guanine.
_False_ 3. Cytosine and adenine are purines.
Nitrogenated bases that form nucleic acids correspond to purines and pyrimidines. Adenine and guanine derive from purines, while Thymine and Citocine derive from Pyrimidines.
Guanine and adenine are purines.
_False_ 4. During the replication of DNA, bonds are broken between the phosphate groups.
During the replication of DNA, bonds are broken between the hydrogen groups.
_True_ 5. RNA contains the nitrogenous base uracil.
Instead of Timine, RNA contains uracil that pairs with adenine.
_True_ 6. There are 20 different amino acids in a cell.
_False_ 7. The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts.
When mRNA leaves the nucleus, meets a free ribosome in the cytosol. Into this organelle, it starts the protein building. Ribosomes read the mRNA code and begin protein synthesis by adding the correct amino acid using transference RNA.
The coded message carried by messenger RNA is translated into polypeptides at organelles called ribosomes.
__True__ 8. The decoding of a messenger RNA message into a polypeptide chain is known as translation
__True__ 9. A severe mutation may lead to cell death and may have no effect on the body.
_False_ 10. Most mutation are harmful.
A mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but most of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection, leading to evolution.
Most mutation are not harmful
Based on structure, DNA molecules are composed of nucleotides and mutations in DNA are mostly harmful.
What is DNA?DNA refers to sequences of nucleotides which contain the genetic information of organisms.
Nucleic acids are chains of nucleotides.
Nucleotides are molecular group consisting of a sugar molecule, a phosphate group and a nitrogenous base.
Four nucleotides are present in DNA and they include:
adenine guanimecytidine andthymidineIn a DNA molecule, a base pair would be composed of adenine and guanine is false because adenine bonds to thymine, while guanine bonds to cytidine
Cytosine and adenine are purines is false because cytosine is pyrimidine while adenine is a purine
During the replication of DNA, bonds are broken between the phosphate groups is false because the bonds broken are hydrogen bonds.
RNA contains the nitrogenous base uracil is true as uracil is found in RNA in place of thymine in DNA.
There are 20 different amino acids in a cell is true as these amino acids are found in proteins.
The coded message carried by messenger RNA is translated into polypeptides at organelles called chloroplasts is false because protein synthesis occurs at the ribosomes.
The decoding of a messenger RNA message into a polypeptide chain is known as translation is true.
A severe mutation may lead to cell death and may have no effect on the body is false because mutations can cause death of organisms.
Most mutation are harmful is true because only free mutations are beneficial.
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What is the largest reservoir
for carbon?
A. marine environments
B. atmosphere
C. producers
Answer:
A. marine environments
Explanation:
so, a. is just the correct answer. largest reservoir for carbon is just marine environments! yay
i hope this helped you, have a grand day
natural selection is the process by which...
Jonathan wants to study the effects of warm and humid weather on plants found on the southeastern coast of the United States. Which type of air mass will he encounter along the southeastern coast?
A)continental tropical
B)continental polar
C)maritime polar
D)maritime tropical
Choose the word from the box below that best matches up with each Earth system.
1. Atmosphere ______________________
2. Biosphere ______________________
3. Geosphere ______________________
4. Hydrosphere ______________________
Answer:
1. Atmosphere
air
2. Biosphere
life
3. Geosphere
earth
4. Hydrosphere
water
Answer:
Atmosphere- Air, Biosphere- Life, Hydrosphere - Water, Geosphere - Earth.
Explanation:
Not 100 % sure. Sorry if my answers are wrong. I tired my best. Have a great day
Which substances are inputs in photosynthesis
Help please
What impact to minerals have on your way of life?
Answer:
Just like vitamins, minerals help your body grow, develop, and stay healthy. The body uses minerals to perform many different functions — from building strong bones to transmitting nerve impulses. Some minerals are even used to make hormones or maintain a normal heartbeat.
PLEASE HELP!! ILL GIVE 50 POINTS!!!!!
Answer: Here's a few
Explanation:
Belt
Glue
Bald
Bale
Tube
Band
Steel
Lane
Best
Darn
Answer:
bell
belt
steel
eels
begs
dabs
bags
slug
best
tear
bear
bean
beer
used
uses
Explanation:
In a particular population the allele frequency of the ABO blood type alleles are as follows: r is 50%. IB is 49% and i is 1%. If mating is random and the population is in Hardy-Weinberg equilibrium, what percent of the population will have an A blood type.
A2%
B.25%
C.26%
D.30%
E.None of above
Answer:
26% is the percent of the population will have an A blood type (Option C)
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Mushrooms and yeasts reproduce by spores and are composed of cells enclosed by cell walls. These organisms fall into which kingdom?
Answer:
Fungi kingdom.
Explanation:
Domains are the highest taxonomic category in which living beings can be grouped or divided. There are three domains: archaea, bacteria, and eukarya.
The eukarya domain is composed of the Protist, Fungi, Plantae, and Animalia kingdoms.
Kingdoms include different phyla closely related.
The Fungi kingdom includes yeasts, molds, and mushrooms. All of them are characterized by the same general aspects.
All the members of the kingdom
Lack mobility, growing on the ground, organic matter, or other surfaces. They all have a rigid cell wall composed of chitin. They grow like hyphae, which are cylindrical uniformed structures that might reach many centimeters in length.Heterotrophic nutrition. The species can not produce their own food, so they decompose organic matter and get the nutrients from there.Reproduction is by spores, which are resistant to adverse environmental conditions.
Which of the following is a condiment that must be strictly kept in the refrigerator?
-mayonnaise
-mustard
-Parmesan
-ketchup
Answer:
mayonnaise
Explanation:
Mayonnaise contains eggs and spoils in the heat
Write a food chain from this food web with six trophic levels.
Answer:
Tiny water plants- newt- perch- heron
Water fleas, small fish, heron, and frog fox is a food chains in the above food web.
What is a food chain?The order of events in an ecosystem, in which one living organism eats another organism, and later that organism is consumed by another larger organism of called a food chain. This is the way the flow of nutrients and energy from one organism to another at different trophic levels in a food chain.
The feeding pattern or relationship between living organisms is the food chain. The sequential stages in a food chain, start with the producers at the bottom and are followed by the primary, secondary and tertiary consumers. Each of these levels in a food chain is known as a trophic level.
The food chain consists of the sun, which is the main source of energy. The producers, the consumers, and the decomposers.
Therefore, in this food web, water fleas, small fish, herons, and frog fox is a representation of a food chain.
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8. Many scientists believe that at one point in history, the polar bear was a close relative of the
brown bear and fossil samples show the connection. Over time, the species spread out into
different areas and became two entirely different species. Which is the most likely explanation
for this phenomenon?
A Polar bears were geographically isolated and over time their color has adapted to fit their
surroundings
B Polar bears color was caused by a genetic mutation and in order to survive the bears had to
migrate north
C Brown bears color was caused by a genetic mutation and in order to survive the bears had to
migrate south
D The similarities between the bears is an example of convergent evolution
Explanation:
I dint really understand the question I'm so sorry
This pedigree shows the inheritance Leber congenital amaurosis (LCA) which is a type of hereditary blindness. Individuals with this disease lose their vision during childhood. 3. What is the inheritance pattern shown?
About the question: You will find the pedigree in the attached files
Answer:
Autosomal recessive inheritance
Explanation:
Autosomal recessive inheritance characterizes by the expression of the recessive trait. Two copies of these alleles are needed to express the recessive phenotype and no dominant alleles.
Let us assume that the diallelic autosomal gene has a dominant allele L that expresses the normal phenotype and the recessive allele l that expresses the altered phenotype. The pedigree would be as shown in the attached files.
To interpret the pedigree, remember that
Squares represent malesCircles represent femalesEmpty figures express normal/healthy/not affected individualsSolid black figures represent affected individualsLeber congenital amaurosis (LCA) is a type of Autosomal recessive inheritance. Individual with this disease loses their vision during childhood.
What is Pedigree Analysis?The study of the inheritance of genetic traits in several generations of a human family in the form of a family tree diagram is called Pedigree analysis.
Two copies of these alleles are required to express the recessive phenotype and are responsible for the inheritance of LCA. As autosomal recessive inheritance expresses its trait when both the alleles of each parent are in recessive form and the resulted offspring shows the inheritance pattern.
Hence, LCA is an autosomal recessive inheritance caused by the expression of both recessive alleles simultaneously in an individual.
To learn more about Autosomal recessive inheritance, refer to the link:
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Someone please please help me
Answer:
D
Explanation:
honestly it’s two in the morning and i don’t feel like thinking
Answer:
A: its way more sentences so answer will be letter A:
Explanation:
Carries instruction are results from the middle of DNA Numerators proteins make some of the examples to underestimated
Please explain why the following statement is TRUE:
A species that lacks variation among its members is more likely to go extinct than a species
with a lot of variation in traits.
PLEASE HELP!!! WILL MARK BRAINLIEST!!!!
6. a) A moth has two alleles for spots. It can have brown or white spots. The white spot allele frequency is 0.53. What is the brown spot allele frequency?
b) A moth population is at Hardy-Weinberg Equilibrium. What can you conclude about how the allele frequency of the population changes over time?
Answer:
a) 0.23
Explanation: