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Marina CMI [18]
3 years ago
11

Why is a parent usually a better match for transplanted tissue to a donor than a random individual of the same species?

Biology
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer: For decreased chances of rejection

Explanation:

The three higly polymorphic MHC 1 genes in human beings are HLA-A, HLA-B and HLA-C.

These determine the compatibility of the organ or tissue in the recipient's body each by the help of many alleles that segregates in a population.

There are very less chances that a random chosen donor will match the a recipient six allele genotype.

This is the reason parent  may be the best donor for organ transplantation or tissue transplantation.

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Describe Two primary fuctions of the cell membrane
geniusboy [140]
Controls what substances can move in and out of the cell. it also protects the cell from its surroundings.
4 0
2 years ago
Which correctly lists the three parts of soil that are classified by their particle size? bedrock, humus, and clay clay, bedrock
Alecsey [184]

Answer:

The correct option is;

Sand, clay, and silt

Explanation:

The categorization of soil particles by size can be made into three classes including sand (particle size between 0.05 mm to 2 mm), silt, (particle sizes between 0.002 mm to 0.05 mm) and clay (particle sizes lesser than 0.002 mm), larger particles such as stones, pebbles, boulders and rock other fragments are left out of the textural classification because of their inertness

The combination of the three particle sizes can be found in most soils and their relative proportion defines the texture of a given sample of soil.

4 0
3 years ago
Read 2 more answers
What factor influences Beach erosion during a hurricane, the most? Storm surge?
nydimaria [60]
Factor<span> in the generation of large coastal </span>surges<span>. Corresponding ... larger than </span>Hurricane<span> Camille </span>during<span>its entire passage through the Gulf of ... Consequently, </span>most hurricane surge<span> studies, for both ... </span>factors<span>for </span>hurricane surge<span> response (</span><span>e.g., Berke et al. 1984). ... cal </span>storm<span> events with </span>coastal erosion<span> and overwash</span>
7 0
3 years ago
ancestors of giraffes with shorter necks could not reach branches high up in trees for food. this led to selection for longer-ne
hichkok12 [17]

With shorter necks, giraffe ancestors could not reach food-containing branches on tall trees. This resulted in the directional selection of giraffes with longer necks.

 

<h3>Why is choosing a direction necessary? </h3>

It nearly appears obvious that the giraffe's long neck developed as a result of a lack of food in the lower branches of trees. The giraffe has a significant advantage because it is taller than any other mammal and can feed where few others can. 

When compared to modern giraffes, the giraffe's ancient predecessors had a shorter neck. The plants that were lying at a higher level were inaccessible to them. Giraffe phenotypes have changed in various ways, and now have long necks to reach vegetation that is higher up. The extreme form is chosen above other features in directional selection. It was decided to choose the long-necked giraffe over the short-necked.

 

To know more about direction selection for longer necked giraffes visit:

brainly.com/question/3738222

#SPJ4

7 0
1 year ago
Kiko writes a report to compare and contrast the cells of plants and animals. Which of the following statements is accurate and
VladimirAG [237]

Answer:

The correct answer is: Vacuoles in plants are much larger than those in animals.

Explanation:

The cell membrane of animals is not thicker than those in plants. In addition, plant cells have a thick cell wall surrounding the cell membrane that is made of cellulose and provides great protection against osmotic and mechanical stress.

Vacuoles in plants ARE much larger than vacuoles in animals, because plant cells r<u>equire much more water</u> and other substances to function properly. Animals, on the other hand, can ingest water and nutrients through food.

Animal cells DO have chromosomes. Every organism has chromosomes in their cells: prokaryotes have one single circular chromosome, while eukaryotes have many linear chromosomes (humans, for example, have 46 chromosomes).

Plant cells HAVE chloroplasts, as these organelles are crucial, since they participate in the process of photosynthesis - which is fundamental for the nourishment of the plant.

The statement that belongs in Kiko's report is Vacuoles in plants are much larger than those in animals.

3 0
3 years ago
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