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omeli [17]
3 years ago
15

What is the name of the unique area (specific region) that a lymphocyte recognizes and binds to?

Biology
1 answer:
AlladinOne [14]3 years ago
6 0

Answer:

a. antigen

Explanation:

The Immune system is composed of immune cells  that  defend the body against foreign substances such as bacteria or virus. Lymphocytes (B and T cells) are one of the main immune cells

Lymphocytes have the ability to recognize and bind to antigens, wich are substances foreign to the body ( i.e bacterial or virus elements) that evokes an immune response.

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What do you think the term gene expression means?​
Ymorist [56]

Answer:

The term gene expression means the process by which the information encoded in our DNA is used to synthesize a functional product, such as a protein molecule or other cell structures.

Explanation:

6 0
3 years ago
A ball is throwing up straight into the air what happens to the ball speed as it goes up and as it comes down?
pentagon [3]

Answer:

the speed of the ball remains the same.

Explanation:

due to newtons law of what goes up must come down applys to this question, and therefore the speed doesn't change.

7 0
2 years ago
There are 40 individuals in population 1, all with genotype A1A1, and there are 25 individuals in population 2, all with genotyp
aliina [53]

Answer:

Genetic drift

Explanation:

Genetic drift can also be referred to as allelic drift, it refers to the variation in allelic frequencies within a particular population over a period of time. It can also be referred to as the random fluctuations in the number of genotypes within a population. Genetic drift is not influenced by the environment and is usually more pronounced in a small population of organisms.

For example, a population of birds can consist of green feathers and blue feathers with the green feathers as the dominant allele, but as a result of random fluctuations, the offspring may all be with green feathers and hence could eliminate or reduce the allele responsible for blue feathers over time.

5 0
4 years ago
Which of the following was NOT used by Darwin in his studies?
koban [17]

Answer:

i think you forgot to pu in the answer choices

Explanation:

4 0
3 years ago
With respect to sensory changes in middle age, people commonly experience a(n) _______.
Alex787 [66]

The correct answer is A. Decline in vision

Explanation:

The term "middle age" is used to describe the time span between 45 and around 65 in human life. During this, important changes occur in terms of senses, this age usually implies a decline in senses including pain, taste, smell, and vision. In terms of vision, it is common during middle ages people began experiencing blurring vision or weakened vision as during this age conditions such as presbyopia, glaucoma, cataracts, among others. Additionally, the decline in vision in this age is commonly related to other conditions such as diabetes, the use of medicines and also jobs that are visually demanding. Thus, in middle age, people commonly experience a decline in vision.

6 0
3 years ago
Read 2 more answers
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