1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nevsk [136]
3 years ago
7

Describe two ways in which an earthworm's body is adapted to life in the soil

Biology
1 answer:
elena-s [515]3 years ago
5 0
They r able to dig down by eating soil,  then eliminating them through the anus
their digestive system is  able to break down decomposing plants, that is a common source of organic materials in the soil
You might be interested in
How does crossing over add to the genetic diversity of sexually reproducing organisms?
neonofarm [45]
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
8 0
3 years ago
Phosphofructokinase (PFK) is an enzyme that converts fructose 6-phosphate to fructose 1,6-bisphosphate, by adding a phosphate gr
erica [24]

Answer:

D. Allosteric activator

Explanation:

In an enzyme, the allosteric site is a site/motif different from the active site, (i.e., the site with catalytic activity) which is able to interact with regulatory effector molecules in order to activate or inhibit enzymatic activity by influencing the tridimensional (3D) structure of the enzyme. An allosteric activator is an effector molecule with the ability to bind to a specific enzyme at a different site than the active site, thereby modifying the shape of the enzyme and increasing the affinity of this enzyme for its substrate. Moreover, Adenosine monophosphate (AMP) is a nucleotide composed of a phosphate group, a sugar ribose, and an Adenine (A) base. This effector molecule (AMP) has shown to allosterically stimulate diverse enzymes in physiological conditions (e.g., AMP-activated protein kinase).

5 0
3 years ago
HELP!! HELP!! HELP!!
zmey [24]

Answer:

D

Explanation:

because they have C, H, O, and N but about 500 naturally occurring amino acids are known and can be classified in many ways. But they have all of the answer that you put down I think

7 0
3 years ago
Read 2 more answers
Antibodies are proteins that have a lock-and-key recognition for their antigen established by the antigen-binding site on the an
Anna [14]

Question is incomplete. Complete Question is as follows.

Antibodies are proteins that have a lock-and-key recognition for their antigen established by the antigen-binding site on the antibody. Match the antibodies in the left column to the appropriate blanks in the sentences on the right.

neither anti-A nor anti-B

anti-O

anti-AB

anti-A

anti-A and anti-B

anti-B

1) People who have the A antigen on the surface of their red blood cells have __________antibodies in their plasma.

2) People who have the B antigen on the surface of their red blood cells have  ___________ antibodies in their plasma.

3) People who have both A and B antigens on the surface of their red blood cells have ____________ antibodies in their plasma.

4) People who have neither A nor B antigens on the surface of their red blood cells have _________ antibodies in their plasma.

Answer:

1) People who have the A antigen on the surface of their red blood cells have   <u>anti-B </u>  antibodies in their plasma.

2) People who have the B antigen on the surface of their red blood cells have <u> anti-A </u> antibodies in their plasma.

3) People who have both A and B antigens on the surface of their red blood cells have  <u>neither anti-A nor anti B</u> antibodies in their plasma.

4) People who have neither A nor B antigens on the surface of their red blood cells have <u> both anti-A and anti-B antibodies</u> in their plasma.

Explanation:

The antigen present on the surface of the RBC determines the blood group of the person.

The type of antigen present on the RBC determines that which antibody will be present in the blood. Always opposite antibody is present in the blood in order to prevent the reaction of antigen antibody and prevent agglutination.

For example For A antigen , anti A antibody will never be present, always anti-B antibody will be present because if anti-A antibody will be present, it will react with the A antigen resulting in the agglutination of the blood.

similarly all the other blood group antigens are varying with the antibodies.

4 0
3 years ago
Explain how snow in the Rockies is related to drought in the prairies
masya89 [10]

Answer:

Drought in this region is frequent, lasting one to two months on average, and ... Prairie grasslands extend eastward from the Canadian Rockies to the ... The extreme nature of climate on the prairies was first highlighted in relation to ... prairies, a well-defined gradient existed in Tmn, extending from a high of around −12.5 °C

5 0
2 years ago
Other questions:
  • What is the dark reaction in photosynthesis
    15·1 answer
  • Where in the cell cycle does dna replication occur
    11·1 answer
  • Which of the following list characteristics of groundwater and NOT surface water?
    14·2 answers
  • What environments were most common to find algae in
    9·1 answer
  • An individual whose genotype is homozygous for the dominant allele is which of the following
    12·1 answer
  • What leads to increase genetic variation in a population
    9·2 answers
  • help please this is for a mastery assignment), 1. What do you think would happen to a shell-less (“naked”) egg if water passed i
    10·1 answer
  • If I slept next to my Alexa all night, will it damage my brain a lot after doing this for a month?
    5·2 answers
  • Define the following ecological term biosphere​
    14·1 answer
  • Do algae have a large vacuole<br> A. YES<br> B. NO
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!