Answer:
Option A, It makes them less dense than water, thus aiding in buoyancy
Explanation:
Lipids stored with in the body of planktons make them capable to float in water against the buoyancy force of water in the down ward direction by reducing the overall density of the planktons. Hence, option A is correct
A population of 24000 has couples that have 2 babies. What is the number of babies?
Answer:12000 babies
Explanation: 24000/2 = 12000
In the white ovals on the map, sraw the directions and path of the winds that occur at those locations on Earth.
Which factor affects the climate of an area due to differences in specific heat?
Please help ASAP
A mountains
B large bodies of water
C latititude
D longitude
Answer:
c latititude
Explanation:
Latitude or distance from the equator – Temperatures drop the further an area is from the equator due to the curvature of the earth. In areas closer to the poles, sunlight has a larger area of atmosphere to pass through and the sun is at a lower angle in the sky.
7. Once anaerobic respiration takes place, are the effects permanent? Why or why not?
If a tutor can give me the answer that would be very helpful
Once anaerobic respiration takes place, the effect is not permanent. When enough oxygen is available, the cell uses the oxygen to oxidise the glucose.
What is anaerobic respiration?In anaerobic respiration, oxygen is not used for the oxidation of glucose, and as a result, very little energy is produced. Glucose undergoes glycolysis and forms pyruvate. Without the presence of oxygen, lactic acid and ethanol are formed from the glucose.
When a person runs too fast, he can't breathe properly, and muscle cells don't get enough oxygen. Due to this, glucose undergoes anaerobic respiration and forms lactic acid. As less energy is produced, more is required by the cell, and a muscle cramp takes place.
When the person gets enough oxygen, this process will reverse as the cells get enough oxygen to completely oxidise the glucose. Due to the lactic acid formation in muscles, the blood pH declines, making the blood acidic.
Hence, when enough oxygen is available, this effect of anaerobic respiration will reverse.
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Describe how mutations and meiosis lead to variation within a population and the role
of variation in the speciation of the tortoises
Answer:
best he
Explanation:
try the best answer will be
The simple sugar in DNA is
O glucose
Deoxyribose
o
ribose
0
starch
Answer:
deoxyribose
Explanation:
answer above
Choose all the right answers.
How do bacteria help the nitrogen cycle?
They release nitrogen in the air.
Bacteria build plant protein.
They make nitrogen chemicals which plants can use.
Bacteria help to release chemicals from dead plants and animals.
Answer:
the answer is 1 and 3
Explanation:
What happens if mutations are not corrected
Answer:
A mutation cannot be corrected and can either harm, benefit or be neutral in an organism
Explanation:
A common gene mutation could be Cancer, this is a highly severe gene mutation that can cause a multitude of complications to an organism when left untreated. Some mutations such as Heterochromia, an eye mutation causing two different colored eyes, cause no harm, but makes the organism look more unique.
Hope this helps!
The digestive system contains a variety of parts that perform specific functions within the body. The small and large
intestines have some similarities and some differences. Which function is only performed in the small intestine?
O water absorption
O vitamin absorption
O mineral absorption
O production of chyme
Answer:
d
Explanation:
Answer: d
Explanation:
The theory of Copernicus contained six hypotheses:
The sun is at the _______ of the planets.
The Earth is ______ of the planets.
All the planets _______around the sun.
Each planet revolves around the sun in its own______ and at different _______
.
The moon______ around the Earth.
The stars are ______part of the solar system.
Answer:
The theory of Copernicus contained six hypotheses:
The sun is at the center of the planets.
The Earth is one of the planets.
All the planets orbit around the sun.
Each planet revolves around the sun in its own orbit and at different distances.
The moon orbits around the Earth.
The stars are not part of the solar system.
Explanation:
hope this helps :)
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)
Evolution is the key to understanding the history of life on our planet, since it is through it that we understand the changes in life forms over time.
What is the purpose of the theory of evolution?The Theory of Evolution states that it is the environment, through natural selection, that determines the importance of the individual's characteristic or its variations, and the organisms best adapted to this environment have a greater chance of survival, leaving a greater number of descendants.
With this information, we can conclude that Evolution is the key to understanding the history of life on our planet, since it is through it that we understand the changes in life forms over time.
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Which substances should be inserted into the diagram to replace W+X?
A , B , C or D
Answer:
water and carbon dioxide
A couple wants a second child that is biologically related to them. They have been trying for five years. The wife is 45 years old and healthy, with no history of sexually transmitted diseases. Three rounds of artificial insemination with her husband's sperm have failed. There is no evidence of any problem with her husband's sperm count or motility. What would be the most likely next step
Answer:
they have to do it in a religious way HOW?they have tried it in a medical way but no answer.acoding to the question that is my answer
There is no evidence of any problem with her husband's sperm count or motility. In vitro fertilization using a donor egg and her husband's sperm.
What is Invitro fertilization ?In vitro fertilization (IVF) is an assistive reproductive technology (ART) which involve in retrieving eggs from a woman’s ovaries and fertilizing them with sperm.
This fertilized egg or embryo which can then be frozen for storage or transferred to a woman’s uterus, Infertility issues for which IVF necessary include reduced fertility in women over the age of 40, blocked or damaged fallopian tubes, reduced ovarian function, endometriosis.
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PLZ HURRY
How does DNA fit inside the nucleus of a cell?
1. DNA is a short molecule
2. DNA is tightly coiled into chromosomes
3. only part of the DNA fits in the nucleus
4. each nucleus contains only one gene
Answer:
2
Explanation:
DNA is tightly packed up to fit in the nucleus of every cell. As shown in the animation, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin
Answer:
DNA is tightly coiled into chromosomes
Explanation:
Other answer is correct
HELP PLZZ!!! I WILL MARK YOU AS THE BRAINLESS ANSWER
Which of these conditions may prevent mold from growing?
A.
high humidity
B.
freezing temperatures
C.
warm temperatures
D.
low humidity
state the role of light photosynthesis
Answer:
the role of light photosynthesis is to absorb the sunlight so the the photosynthesis can happen if there is no light, or sunlight them photosynthesis cannot happen, light I intensity is a very important role to photosynthesis
Explanation:
hope that helped
the second male cone in cycas plant is formed by the activity of
Answer:
Explanation:
Cycas is a genus of plants belonging to a very ancient lineage, the Cycadophyta, which are not ... A male cone of Cycas orixensis with unique forked microsporophylls ... the cycads in not forming seed cones on female plants, but rather a group of leaf-like ... The leaflets are articulated, have midrib but lack secondary veins.
Which process requires energy from food to help a cell maintain homeostasis?
A. a phosphate ion being released from ATP
B. a phosphate ion being added to ADP
C. the conversion of glucose to oxygen
D. the creation of RNA from DNA
Answer:
B
Explanation:
Sounds lower than what the human ear can sense are ultrasound True or false?
Answer:
True
Explanation:
we cannot hear ultrasound waves
Which climate does not have warm summers?
Please help ASAP
A continental
B tropical
C polar
D dry
Answer:
c
Explanation:
Answer:
Polar
-i think-
Explanation:
PLEASE HELP QUICKKK!!!
Which of the following did NOT conduct experiments on viruses and bacteria as a way to study genetics?
A. Avery
B. Hershey and Chase
C. Griffith
D. Watson and Crick
Answer:
I THINK C
Explanation:
Which characteristic could help you distinguish between types of fungi
Answer: The correct answer would be the spores made by the fungi.
The major phyla of the fungi are usually classified on the basis of characteristics of sexual structures.
For instance, the chytridiomycota produce zoospores, the blastocladiomycota undergo sporic meiosis, the ascomycota forms ascospores et cetera.
Fungi are mainly classified into seven phyla:
Microsporidia
Chytridiomycota
Blastocladiomycota
Neocallimastigomycota
Glomeromycota
Ascomycota
Basidiomycota
Hope I helped.
PLEASEE HELP ASAP!! ITS EASY!!! WILL MAKE YOU THE BRAINLIST!!!
What mechanism is responsible for the obvious signs of an intoxicated person?
muscle cells have been blocked by dopamine
nerve cells are not functioning at all
cells are prevented from releasing hormones and enzymes
nerve cells are not effectively communicating with muscle cells
Answer:
nerve cells are not effectively communicating with muscle cells
what is soil plant nutrition?
Answer:
Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.
Answer:
Soil is a major source of nutrients needed by plants for growth.
Explanation:
Fungi have their own kingdom in taxonomic classification. True
or False?
TRUE
FALSE
Answer: The Kingdom Fungi has organisms with eukaryotic cells. * They are termed as eukaryotes as they possess membrane-bound organelles and also a true nucleus( unlike prokaryotes). ... The statement - Species is the lowermost category in the hierarchy of classification of groups of organisms is true.
Explanation:
Why did land animals evolve back to aquatic environments?
Answer:
Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. ... In air, eyes can see much farther than they can under water.Explanation:
Answer: Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. ... In air, eyes can see much farther than they can under water. Tetrapods evolved from a group of organisms that, if they were alive today, we would call fish. They were aquatic and had scales and fleshy fins. ... Between 390 and 360 million years ago, the descendents of these organisms began to live in shallower waters, and eventually moved to land.
Explanation:
What is an energy pyramid????
Answer:
From each trophic stage in an ecosystem, a pyramid of energy reflects how much energy, originally from the sun, is retained or deposited in the form of new biomass. Around 10% of the energy is typically passed from one trophic level to the next, preventing a large number of trophic levels from forming.
Explanation:
example:
In order to identify genes that function together in genetic pathways researchers can perform modifier screens, looking for second site enhancers or suppressors of a mutant. Which of the following is the most reasonable strategy for carrying out a suppressor screen in particular?
a. analyze the DNA sequence near the mutation of interest, looking for sequences that may act as silencers.
b. identify mutations that, when crossed with the original mutant, result in synthetic lethality.
c. mutagenize the original mutant and look for new mutations that reduce the severity of the original mutant phenotype.
d. screen for enhancer-trap strains that show gene expression differences in the original mutant.
e. isolate mutants with phenotypes similar to the original mutant phenotype and then cross the mutants to identify the affected genes.
Answer:
c. mutagenize the original mutant and look for new mutations that reduce the severity of the original mutant phenotype.
Explanation:
A suppressor screen is a technique employed to identify a second mutation (i.e., a suppressor mutation) capable of reverting/alleviating the phenotypic effects associated with an initial mutation. There are two types of mutants obtained from this approach: 1-Intragenic suppressors, which involve second mutations inside the gene that restore the original function of the mutated gene; and 2- Intergenic suppressors, also known as extragenic suppressors, which involve second mutations in a gene that is distinct from the original mutated gene (usually extragenic suppressors function in the same signaling pathway as the original mutated gene).
Suppose the stereocilia of one hair cell become permanently bent toward the kinocilium. What will most likely happen as a consequence
Answer:The options are not given, here are the options from another website.
a. A single pitch will be constantly perceived
B. A single pitch will no longer be perceivable
c. A or B depending on the hair cell's location
d. A or B depending on the bending's direction.
The correct option is d.
A or B depending on the bending's direction
Explanation:
This is because stereocilia are normal bent where there is a shearing force that occur when there is a up and down movements of the basilar membrane . When stereocilia bend towards the kinocilium, it make it depolarizes the cell and lead to the afferent activity to rise up and when the stereocilia bend away from the kinocilium , it hyperpolarizes the cell and lead to a reduction in afferent activity.
The consequences of this are that a single pitch will be noticed, or no pitch will be noticed. This will depend on the direction the stereocilia have bent.
We can come to this answer because:
Stereocilia are cellular accessories that help cells move around.They can curve up or down, generating different but very important effects.If the curvature is made towards the kinocilium, we can notice the formation of a pitch, as the cell becomes polarized.If the curvature is in the opposite direction to the kinocilium, the cell will be depolarized and it will not be possible to visualize the pitch.In this case, we can state that the consequences of the curvature of the stereocilia will depend on the side towards which this curvature is directed.
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Define protein synthesis
Answer:Protein synthesis is the process in which cells make proteins
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination