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
Rom4ik [11]
3 years ago
12

an organ such as a kidney used for transplant needs to be tested for compatiblity with the person who is to recieve the organ. I

f this is not done,the A) donated organ might attack body B) immune system might attack donated organ C) immune system might attack its own body cells D) donated organ might attack the immune system .
Biology
1 answer:
Alex73 [517]3 years ago
8 0
B. The immune system might attack the donated organ.

This happens because the immune system is always checking all of the cells in your body for cells that are foreign and trying to attack your cells. The proteins on the outside of your cells have proteins on them that allow other cells to identify them. If the transplanted organ isn’t compatible with the recipient, then the immune system will recognize that and attack it, thinking the organ poses a threat to the person.
You might be interested in
1 point
ipn [44]

Answer:

Trophic Cascade

Explanation:

Trophic cascade is when the ecosystem experiences a level of a certain species being reduced or removed.

8 0
3 years ago
How many chromosomes does a human body have?
Novay_Z [31]
<span>Humans have 23 Chromosomes </span>
8 0
3 years ago
Read 2 more answers
Which plays both a role in physical and chemical digestion?
kotykmax [81]

Answer:

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.The digestive system fuels the cells and the excretory system rids the body of the cells' waste.

Explanation:

6 0
3 years ago
Read 2 more answers
According to the theory of endosymbiosis How did cells acquirenhow did cells acquire chloroplast
stira [4]

According to endosymbiotic theory, the chloroplast evolved as a result of engulfment and assimilation of a Cyanobacteria by an eukaryotic cell.

Explanation:

  • Endosymbiotic theory supports the view that ceratain organelles of the eukaryotic cell evolved as a result of engulfment of single celled organism.
  • Evidences  that support this theory is the presence of organellar DNA.
  • It is assumed that Mitochondria evolved as a result of engulfment and assimilation of an aerobic prokaryote while Chloroplast evolved due to engulfment and assimilation of a photosythetic prokaryote by an Eukaryote.
  • After the engulfment ,these organisms however escaped the phagocytosis and began to benefit the eukaryotic Host.
  • Soon it lost many of its Genes to the eukaryotic nucleus and became dependent on the Host.
  • Thus a symbiotic association was established between the prokaryote and the host.Giving rise to cell organelles.
7 0
3 years ago
A liver cell in a squirrel has how many chromosomes
quester [9]

80 chromosomes (40 pairs)


4 0
3 years ago
Other questions:
  • The relationship between humans and their bacteria can be described as
    12·1 answer
  • How does the pattern of embryological development provide further evidence that organisms have descended from a common ancestor?
    11·2 answers
  • What mediates the reduction of carbohydrates during the Calvin cycle?
    10·2 answers
  • What are the subunits called that make up carbohydrates?
    15·1 answer
  • The exchange of segments of dna between the members of a pair of chromosomes is called:
    8·1 answer
  • How does loss of biodiversity affect the biosphere
    15·1 answer
  • Gene splicing is used to produce what
    6·1 answer
  • Help !!
    9·1 answer
  • 1Neurons are classified in several different ways. From the following statements, select which ones are true.
    8·1 answer
  • Discuss the causes and effects of veld fire and suggest practical solutions
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!