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forsale [732]
3 years ago
6

Substances known as _________ provoke a specific immune response so discriminating that only a single molecular fragment, called

an __________, actually interacts with the lymphocyte’s receptor.
Biology
2 answers:
MariettaO [177]3 years ago
5 0

Answer:

Antigens, and epitopes.

Explanation:

Antigen is known as a substances which is capable of the causes an immune response in the body, and specifically activating white blood cells which are known as body's infection fighting cells. In general antigens are two types:

1) Foreign antigens or heteroantigens.

2) Auto-antigens or self antigens.

Epitopes are the part of an antigen which is recognized with the help of immune system, specifically by B cells, T cells, and antibodies. They are also called as antigenic determinants. The epitope is defined as the specific part of the antigen where an antibody binds.

Hitman42 [59]3 years ago
3 0

Answer:

Antigens; epitope.

Explanation:

The immune system of the body is important as it helps to fight against with the harmful pathogens that cause disease in the organism. This also helps in self tolerance of the organism.

The antigens are known to be pathogenic in humans and specific antibodies are created in the body to kill the antigen. The part of the antigen that can cause cause disease and evokes the immune response of the host is known epitope and the other part is known as epitope.

Thus, the answer is antigens; epitope.

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If a pea plant has a recessive allele for green peas it will produce
PilotLPTM [1.2K]

Answer:

Green peas if it does not have a dominant allele for yellow peas.

Explanation:

In pea plants, yellow is the dominant allele color of peas and green is the recessive allele color of the pea. So the genotype that makes yellow color pea is YY or Yy and the genotype that is responsible for producing green color pea is only YY.

This shows that homozygous dominant or heterozygous dominant condition gives rise to yellow color pea and only homozygous recessive condition would give rise to green color pea plants.

Therefore if a pea plant has the recessive allele for green peas it will produce green peas if it does not have a dominant allele for yellow peas.

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3 years ago
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Aleonysh [2.5K]

Answer:

Population trend refers to changes over time and can include changes in ranging behavior (e.g., distance and route) and distribution, biogeography (e.g., size of population) and life-history (e.g., birth and death rates).

7 0
3 years ago
__________ refers to the breadth and depth of material covered.
Tanzania [10]
The answer is called Scope. Hope this helps.
3 0
3 years ago
Ground tissue in plants consists of highly specialized cells that perform certain functions. What is one function of the ground
White raven [17]
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Explanation:

<h3>Ground Tissue Function</h3><h3>Parenchyma Tissue Photosynthesis Food storage Healing and tissue regeneration</h3><h3>Collenchyma Tissue Support in young stems, roots, and petioles</h3><h3>Sclerenchyma Tissue * Rigid support Protection</h3><h2>hope this helps</h2>
7 0
3 years ago
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kotegsom [21]
The is answer is: 

1. first to document careful observations of different cell types
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