Answer:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Explanation:
That's the same as the difference between mitosis and meiosis, sorry if this doesn't help, i'll rate mine 3 stars
Some of the sugars produced by photosynthesis are stored as starch in the roots. Explain, as fully as you can, why it is an advantage to the plant to store carbohydrates as starch rather than as sugar.
Answer:
It's insoluble
Explanation:
Starch is better than glucose for storage because it's insoluble.
Insoluble meaning it can't be dissolved.
list 3 ways soils are classified
Answer:
Soils are composed of mixtures of mineral and organic materials, but are classified according to the size of their mineral particles. The three main texture groups are sandy, silty, and clay.
Sandy soil contains particles that can be seen with the naked eye and feels gritty when rubbed between the thumb and forefinger. Sandy soils will generally not stick together when wet.
Silty soil contains particles, which are smaller than sand particles but larger than clay particles. Silt feels powdery when rubbed between the thumb and forefinger. Silty soil sticks together when wet, but will not hold its shape after it is dry.
Clay soil contains the smallest particle size. Clay particles form a sticky soil when wet and will generally hold a shape after drying. Soils are rarely composed of just sand, silt, or clay. They are usually a mixture of the three with a larger percentage of one size of particles.
Answer:
Depending upon the average grain-size and the conditions under which soils are formed and deposited in their natural state, they may be categorized into following types on the basis of their structure: In the grain-size classification, soils are designated according to the grain-size or particle-size. The more common classification systems are enlisted below: Geological Classification
Classification by Structure
Classification based on Grain-size
Unified Soil Classification System
Preliminary Classification by soil types
Based on the agencies responsible for their present state, soils may be classified under following types: Residual Soils
Transported Soils:
Alluvial or sedimentary soils
Aeolian soils
Glacial soils
Lacustrine soils
Marine soils.
Then you have inorganic and organic soils.
Explanation:
What describes a ecosystem?
Look at bottom comment
Suppose you found a rock, and through testing found out that it had just as much lead-206 as uranium-238 in it. How old would you conclude the rock to be?
Answer:
The answer is below
Explanation:
Let m be the mass of each of lead-206 and uranium-238 found in the rock. The radioactive decay is given as:
[tex]U_t=U_oe^{-\lambda t}\\\\U_t=number\ of\ undecayed\ U238\ after\ time \t,\\U_o=number\ of\ undecayed\ U238\ initially,\lambda=decay\ constant\\\\But\ U_o=U_t+Pb_t\\\\U_t=U_t+Pb_t(e^{-\lambda t})\\\\e^{-\lambda t}=\frac{U_t}{U_t+Pb_t} \\\\e^{\lambda t}=\frac{U_t+Pb_t}{U_t} \\\\e^{\lambda t}=1+\frac{Pb_t}{U_t}[/tex]
half life of uranium-238 = 4.468 * 10⁹ years
λ = 0.693 / half life = 0.693 / 4.468 * 10⁹ years = 0.1551 * 10⁻⁹
[tex]n_{Pb_t}=\frac{m}{206} \\\\n_{U_t}=\frac{m}{238}\\\\1+\frac{\frac{m}{206}}{\frac{m}{238}}=e^{\lambda t} \\\\e^{\lambda t} =2.1553\\\\ln(e^{\lambda t} )=ln(2.1553)\\\\\lambda t=0.7679\\\\t=\frac{0.7679}{\lambda} \\\\t=\frac{0.7679}{0.1551*10^{-9}} \\\\t=3.43*10^9\ years[/tex]
For the following template
DNA sequence:
3 TÁC AGA - GGT -
TCG - ATC 5'
a) provide the amino acid
sequence
b) provide the anticodons in
order
c) Mutate the above DNA
sequence to introduce a
silent substitution. Write the
mutated DNA sequence
down.
Make sure to clearly
indicate if your answer for
each part by labeling it a) or
b) or c)
Answer:
a) Methionine- Serine- Proline- Serine- STOP.
b) UAC- AGA - GGU -
UCG - AUC
c) AUG- UCG- CCA- AGC- UAG
Explanation:
A) The DNA sequence in this question is given as follows: 3 TÁC -AGA - GGT -
TCG - ATC 5'. This sequence undergoes transcription and translation (gene expression) in order to give rise to an amino acid sequence.
The mRNA sequence that will result following transcription is: AUG- UCU- CCA- AGC- UAG
Following translation, each codon in the above mRNA sequence will result in the following amino acid sequence: Methionine- Serine- Proline- Serine- STOP.
B) Anticodons are a group of three nucleotides that are complementary to a codon found on the tRNA molecule. The anticodons for each codon on the mRNA sequence is: UAC- AGA - GGU -
UCG - AUC
C) Silent mutation is a type of substitution mutation in which one or more nucleotide base is replaced by another in such a way that it does not change or alter the amino acid sequence. Using the mRNA sequence: AUG- UCU- CCA- AGC- UAG
A mutated sequence is as follows: AUG- UCG- CCA- AGC- UAG. Note that, G has replaced U in the second nucleotide. However, there is no change in amino acid that results because the same UCU that codes for SERINE is also encoded by UCG.
Which example best demonstrates artificial selection?
Salmon swimming upriver to lay their eggs.
The forrest service stocking trout in a lake in Montana.
Farmers breeding pigs with less fat.
HELP ME!!
what is the Chemical Equation for Cellular Respiration???
(I am bad at biology!!)
Answer:
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:
A single elephant is an example of a(n)
Answer: organism
Explanation:
An organism because that means a single living thing.
It wouldn't be a biome because that is a certain place for example a forest, the desert etc.
It wouldn't be a population because that is more than one and we just want one elephant.
And it wouldn't be a community because that is still more than one.
Hope this helps :)
Answer:
population
Explanation:
well it's population because population that is a an example of a n
What is an example of codominance?
A flower with pink petals that results from the cross
a of a plant with red petals with a plant with white
petals
b Blood type o
c Skin color
A flower with red and white petals that results from
d the cross of a plant with red petals with a plant with
white petals
Answer:
Explanation:
dnanananans
Answer:
It’s D
Explanation:
I jus did it.
The Rolling Plains ecoregion lies west of the Crosstimbers area of Texas and at elevations between 900-4000 ft. The Rolling Plains is a part of the central United States Great Plains system. Like the Crosstimbers ecoregion, it has rolling hills. These topographical features are due to the several rivers that flow through this ecoregion.
The rivers in the area weather and erode the land, forming __________ in this area.
Answer: plateaus
Explanation: there not canyons so you can cross that off and its not the dunes nor the deltas so if you look at the picture you can tell it is the plateaus
Rivers in the area weather and erode the land, forming a mouth in this area.
MouthIt is the place where a stream of water, such as a river, empties. Thus, a river can have as its mouth another river, a large lake, a pond, a sea or the ocean.
With this information, we can conclude that the rivers in the area weather and corrode the land, forming a mouth in this area.
Learn more about Mouth in brainly.com/question/7998630
what happens when psychological processes break down?
Answer:
dont question the impossible
Explanation:
Explain two ways to study biotic and abiotic factors within an ecosystem.
[tex] \sf{ \huge}{ \colorbox{pink}{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}[/tex]
Ecologists study both biotic and abiotic factors and how they interact. Therefore, ecologists often use methods and data from other areas of science, such as geology, geography, climatology, chemistry, and physics.
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals
[tex] \sf{ \huge}{ \colorbox{pink}{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}[/tex]
Through geology and geography, we can study biotic and abiotic factors within an ecosystem.
How can you study biotic and abiotic factors within an ecosystem?The interactions between biotic factors, such as organisms like flora and fauna, and abiotic factors.
For example, all animals (biotic factors) breathe in oxygen (abiotic factor). All plants (biotic factor) absorb carbon dioxide (abiotic factor) and need water (abiotic factor) to survive.
Thus, geology and geography, are the two ways to study biotic and abiotic factors within an ecosystem.
To learn more about biotic and abiotic factors click here:
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which best describes the correct pairing of dna bases? A. T with T, and C with C. B. T with A, C with G, C. T with G, A with C. D. T with C, and A with G
What makes some traits dominant and other recessive?
Answer: the amount of protein produced
Explanation: a dominant gene produces enough of its protein to become a signiture trait even if it is paired with a recessive trait but with two or more reccesive traits your body is getting a low amount or no amount of the protein needed to become/show up as a dominant trait
How many amino acids are coded for by the strand of mRNA shown below? Assume the reading frame begins with the first nucleotide.
CGA UAC
Answer:
2 ..........................
Answer:
2
Explanation:
Two for the win!
The reproductive system of a male mammal provides
(1) support for the internal development of the embryo
(2) materials through the placenta
(3) a means for the delivery of sperm cells
(4) the ovaries for egg production
1. how many times does interphase occur before mitosis? ____
2. how many times does interphase occur before meiosis? ____
What are the differences between ribosomes in prokaryotes and eukaryotes? Eukaryotes have no ribosomes, but prokaryotes do. Prokaryotes have bigger ribosomes than eukaryotes. Prokaryotes have smaller ribosomes than eukaryotes. Prokaryotes have ribosomes, but eukaryotes lack them.
Answer:
Prokaryotes have smaller ribosomes than eukaryotes
Answer:
I hope this helps.
Explanation:
All of the following are functions of proteins except?
A) storage
B) movement
C) structure
D) insulation
All of the following are functions of proteins except insulation. So, the correct option is (D).
What is Protein?Proteins are defined as large biomolecules and macromolecules consisting of one or more long chains of amino acid residues. Proteins do most of the work in cells and are essential for the structure, function, and regulation of the body's tissues and organs.
Proteins serve as the building blocks for bones, muscles, cartilage, skin and blood which also form the blocks for enzymes, hormones and vitamins. Proteins are one of the three nutrients that provide calories while the others are fats and carbohydrates.
Proteins function are storage, movement, structure, etc.
Thus, all of the following are functions of proteins except insulation. So, the correct option is (D).
Learn more about Proteins, here:
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Which of the following is the limiting factor for cell size?
A)density
B)surface-to-volume ratio
C)volume
D)surface area
Answer:
The link that takes you to the answer is here:
https://brainly.com/question/11369280
Explanation:
Mutations are
1.neutral, having no effect on an organism.
2. good or helpful for an organism.
3.either helpful, harmful or neutral, depending on the organism's environment.
4.bad or harmful to an organism.
Answer:
either helpfu, harmful or neutral
5. Which of the following is not one of the four main reasons for cell reproduction?
A) replacing dead cells
B)reproducing organisms
C)repairing damaged chromosomes
D)growing new cells
PLEASE HELP ASAP
If an individual has trisomy 21, what is true of the individual's chromosomes?
There are 21 chromosomes in each body cell.
There is a deletion of chromosome 21.
There are 47 chromosomes in each body cell.
There are 47 chromosomes in half the body cells.
Answer: There are 47 chromosomes in each body cell.
Explanation:
Answer:
there are 47 chromosomes in each body cell
Explanation:
A strand of RNA has the sequence AUUGCGCGAA. What explanation can be made about how this strand came to be?
A. The RNA strand formed from the rearrangement of the bases in a DNA strand.
B. The RNA strand broke off from a DNA strand that had a much longer genetic code.
C. The RNA strand was transcribed from a DNA strand with the sequence TAACGCCTT.
D. The RNA strand was translated from a DNA strand that had the sequence UAACGCCUU.
A strand of RNA with the sequence "AUUGCGCGAA" has been transcribed from a DNA strand with the sequence "TAACGCCTT". Thus, the correct option is C.
What is Transcription?Transcription is the process of formation of mRNA from the DNA in the nucleus of cell. The machinery involving all the enzymes and nucleotides are present in the nucleus for the development of mRNA. mRNA is the messenger RNA which is transcribed from DNA.
The sequence of mRNA formed from the DNA in a cell is complementary to the leading strand of the DNA in which only the thymine residues are replaced by the uracil residues. Adenine base pairs with uracil and thymine residues base pairs with adenine residues. Cytosine residues base pairs with guanine residues and vice versa.
Thus, the sequence of DNA from which mRNA has been synthesized is "TAACGCCTT".
Therefore, the correct option is C.
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Which of the following is the term used to describe the chill-point at which a plant may survive, but will grow little if at all?
•Tmin
•zero degrees
•base temperature
•frost point
How do Venus flytraps protect themselves from predators?
Answer:
Insects are protected by a chitin exoskeleton. The Venus flytrap cracks this protective shell using special digestion enzymes that are produced once the sensory hairs register a stimulus. It will ebb away if the hairs are not further stimulated.
Answer:
I do believe that the Venus flytrap is a predator because it is a carnivorous plant. The plant's trap is a single large leaf with trigger hairs.
Explanation:
which is the thinest thing in the world
graphene because you can't even see it with the naked eye
O Heat is the energy needed to change the temperature of 1 gota substance by to
O Heat is the average kinetic energy of the particles of a substance
O Heat is the total energy of a substance due to the movement of is partides.
O Heat is the energy that thows between buvo substances of different temperatures
The breakdown of food takes place in the mouth, stomach and small intestine. Name the type of digestion for which the teeth in the mouth are responsible.
Mechanical Digestion is a type of digestion for which the teeth in the mouth are responsible. It consists of chewing the food.
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What force is needed to accelerate a 25 Kilogram
surface of 7 m/s2?