Rats, mice, and gerbils all belong to the same family of rodents, yet each species differs in several important ways. Foxes employ their rapid reflexes to catch prey, whereas cats are noted for being covert hunters.
What sort of symbiotic relationship do rodents and humans share?Whether we like it or not, these rodents are called commensal, which means they have a symbiotic relationship with us humans and profit from us and our homes.
What genetic variations exist between rats and mice?Although both are rodents, they differ genetically in that mice have 20 pairs of chromosomes whereas rats have 21 pairs. The size of the faeces is often used to identify the animals. Compared to mice, rats often live slightly longer.
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PLEASE HELP - Practice Selecting and Reading a Value on a Micropipette
Answer:
See email again. I am working on it.
Why must DNA replication happen in order for the stem cell treatment to work?
Answer:
Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Explanation:
The wing of a bird and the front limb of a mammal have a similar number and arrangement of bones. Which evolutionary relationship explains these similarities? A. The wing and front limb are homologous structures; each evolved from a common ancestor. B. The wing and front limb are analogous structures; each evolved from a common ancestor. C. The wing and front limb are analogous structures; each evolved independently. D. The wing and front limb are vestigial structures; one evolved from the other.
Answer:
A
Explanation:
The correct answer would be that the wing and front limb are homologous structures; each evolved from a common ancestor.
Homologous structures are organs of different organisms that look similar in structure but perform different functions on their respective owners. They are as opposed to analogous organs which look different on different organisms but perform similar functions on them.
An example of the homologous organ is the wing of birds and the fore-limbs of mammals which are both built on a five-digit plant, also known as pentadactyl plan. While birds use their wings to fly, the fore-limbs of mammals are adapted for grasping or walking. An example of the analogous organ is the wing of birds and the wing of insects. They both look structurally different but are both for flying.
The correct option is A.
NEED HELP ASAP:
Which of the following describes DNA methylation?
A.) A mechanism involving attachment of methyl groups to certain bases to increase the rate of transcription.
B.) A mechanism involving attachment of methyl groups to certain bases to facilitate the binding of DNA to intermediate filaments.
C.) A mechanism involving attachment of methyl groups to certain bases leading to apoptosis.
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
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Answer:
D.) A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development.
Explanation:
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The statement that can be used to describe DNA methylation is "A mechanism involving attachment of methyl groups to certain bases for the long-term inactivation of genes during development."
Option D.) is correct.
Define DNA methylation.DNA methylation controls gene expression by attracting proteins implicated in gene repression or preventing transcription factor(s) from binding to DNA. The pattern of DNA methylation in the genome varies during development as a result of a dynamic process that includes both de novo DNA methylation and demethylation.
DNA methylation is an epigenetic mechanism that happens when a methyl group is added to DNA, altering the function of genes and influencing gene expression.
It's a process that involves attaching methyl groups to specific bases in order to inactivate genes for a lengthy time throughout development.
So, the statement that can be used to describe DNA methylation is option D.)
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Which occurs in the integumentary system after a deep injury occurs to the system?
Multiple choice question.
A)
Red blood cells fight off pathogens.
B)
Blood quickly clots to form a scab.
C)
Epidermis cells increase their size.
D)
Dermis cells close the injured vein.
Answer: The correct answer is B
How tall is the average male in North Korea?
Answer:
The average height of men in North Korea would be 170.7 cm (5ft 7in)
Explanation:
Because they are a different breed :)
Using the sequence of DNA bases below, give the proper tRNA anticodons involved in protein synthesis.
TTAAGC
Answer:
AAUUCG is the mRNA's sequence and the codons are AAU and UCG. So the anticodons are complementary:
UUA and AGC
These are the anticodons
Note: Thymine is substituted with uracile in RNA
What shape is this galaxy??
Answer:
a circle
a sphere
Explanation:
9. Nulceus
(1 Point)
O plant
O animal
O both
10. Vacuole
(1 Point)
O plant
O animal
O both
Answer:
1. Both2. Both
Hope this helps!
Can someone pls help me
WILL MARK YOU BRAINLIEST !!
Answer:
The Correct Answer Is D
Explanation:
the more it mutates the stronger it gets right? this also lessens the chance for a cure to work.
Answer:
The answer is D.
Explanation:
The reason behind it is because bacteria has grown to resist antibiotics so scientists and doctors have to continue to make stronger medicines to fight off the bacteria.
17. Which of the following is not an issue with migration to land for water plants
a. dehydration
C. support
b. vascular tissue
d increased preditors
What is the mRNA code transcribed from the following DNA segment:
DNA segment ---TAC-ATG-GTC-AAC-ATC
Answer:
AUG UAC CAG UUG
Explanation:
Which best describes cancer?
1) Cells that divide uncontrollably due to mutation
2) A single cell that happens to be bigger than others
3) Cells that stay in G1
4) A virus that attaches to bacterial cells
Answer:
1
cells that divide uncontrollably due to mutation
What is nonrenewable and renewable mean?
Answer:
renewable is one that can be used repeatedly and does not run out because it is naturally replaced. A renewable resource, essentially, has an endless supply such as solar energy, wind energy, and geothermal pressure
Nonrenewable is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource. Fossil fuels such as oil, natural gas, and coal
Which structures in the cell are protiens assembled in?
Which factor is a major difference between weather and climate?
A. Time
B. Sustainability
C. Location
D. Impact
PLEASE ANSWER THESE 3 QUESTIONS ASAP GIVING 23 POINTS AWAY!!!!!!!!!
Answer:
1.B PLEASE ADD BRAINIEST
2.D
Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
What best describes a high pressure system? Question 4 options: Warm, rising air that creates cloudy, rainy weather Warm, rising air that creates clear, sunny weather. Cool, sinking air that creates cloudy, rainy weather Cool, sinking air that creates clear, sunny weather
Answer:
a high pressure system : Cool, sinking air, that creates clear, sunny weather.
Explanation:
The characteristics of the high-pressure system is marked by the presence of the cold and sunny days as compared to those of the warm and low-pressure pressure regions of the world. The air is light and lifts up easily and hence leading to the formation of clouds and rainfall. As compared to the cold air mass that is dense and hence has low moisture contents.what are some of the services that a healthy biodiversity provides for everyone?
Answer:
it gives a greater variety of crops
Describe the data used by Watson and Crick to determine the structure of DNA
they used Franklin's x-ray picture and data as well as other mathematical data to determine the specific structure of the DNA double helix. Compare and Contrast the structure of prokaryotic and eukaryotic chromosomes.
Data of X Ray diffraction is used by Watson and Crick to determine the structure of DNA.
What is X Ray diffraction?"X-ray diffraction is a phenomenon in which the atoms of a crystal, by virtue of their uniform spacing, cause an interference pattern of the waves present in an incident beam of X rays."This is used for determining the 3D structures of crystal.By using data of this method Watson and Crick gives helical structure of DNA.
Hence, the data used is of X Ray diffraction.
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>> how is atp produced in the mitochondria?
Answer:
Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.
Explanation:
- Eijiro <3
Answer: Most of the adenosine triphosphate (ATP) synthesized during glucose metabolism is produced in the mitochondria through oxidative phosphorylation. This is a complex reaction powered by the proton gradient across the mitochondrial inner membrane, which is generated by mitochondrial respiration.
how much nervy is needed to melt 90g at 0°C
Answer:
I don't know I'm sorry I will tell you another answer asks me to
wich soil
dries faster after rainfall
Answer:
There are 3 types of soil
Explanation:
-Sandy soil
-Clay soil
-Loam or something i forgot lol
1.basically Sandy soil absorbs and doesn't retents water (water retention) so it evaporates quizker than most soils
2.While clay say doesn't absord much water
3.And loamy soil (Mostly used in gardening) absorbs water but doesn't retain it so it evaporate or either used up by plants.
5. The sequence of nitrogen bases on a portion of a strand of DNA is ATGCAA. Which
sequence best represents the portion of the messenger RNA strand that encodes this
information?
A TAGOTT
B. UAGOUU
CAUBCAA
D. UAOGLU
ace
UAGOUU is a messenger RNA strand that encodes this information.
What is Messenger RNA?
Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.
The function of mRNA is to transport protein information from DNA in the cell's nucleus to the cytoplasm (watery center), where the machinery responsible for producing proteins reads the mRNA sequence and converts each three-base codon into an amino acid that will eventually create a protein.
mRNA, or messenger RNA. Therefore, mRNA is actually a type of nucleic acid that aids in the cellular machinery's ability to read the human genome, which is encoded in DNA.
Therefore, UAGOUU is a messenger RNA strand that encodes this information.
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When oxygen is present, glycolysis is followed by
A. lactic acid fermentation
B. alcoholic fermentation
C. photosynthesis
D. the Krebs cycle
Answer: D. The Krebs cycle
Explanation:
If oxygen is available, glycolysis is followed by two processes in the mitochondria -- the Krebs cycle and oxidative phosphorylation, respectively -- that further increase ATP yield.
When oxygen is present, glycolysis is followed by
Answer:
D. the Krebs cycle
What similarities in the development lead scientists to infer that opossums ,chickens, salamanders,and fish share a common ancestor?
What are the characteristics of life that all living things have in common?
Answer:
Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Explanation:
Pls help, this is science class btw
Think about the meanings of the words "dependent" and "independent" as they relate two variables. What do you think "interdependence" means in terms of organisms that live together in an ecosystem?
Answer:
Explaination Down Below
Explanation:
Interdependance could mean how the two organisms are two different living things that work in different ways to eachother, yet because of the fact they live together in an ecosystem states the fact they work together to help that ecosystem thrive.
(This is my interpretation, feel free to copy and paste as your answer :))
Which is a unicellular fungus?
A Slime mold
B Mushroom
C Yeast
D none of these
Explanation:
Unicellular fungi are generally referred to as yeasts. Saccharomyces cerevisiae (baker's yeast) and Candida species (the agents of thrush, a common fungal infection) are examples of unicellular fungi. Example of a unicellular fungus: Candida albicans is a yeast cell and the agent of candidiasis and thrush.