Answer: As a body cell grows, the ratio of SURFACE AREA to volume INCREASES. Before it grows to large, a cell will divide into two DAUGHTER cells. So that each new cell receives its own genetic instructions, the cell REPLICATES or copies, all of its DNA.
Explanation:
An atom is the most basic unit of matter
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.
Answer:
Natural selection and selective breeding can both cause changes in animals and plants.the difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. for this reason selective breeding is sometimes called artificial selection.
Explanation:
Hope this helped Mark BRAINLEST!!!
Answer:
social facilitation
Explanation:
This ability or improvement in teh performance of a person when they work in the presence of others is called social facilitation.
The definition was first put forward in 1898 by Norman Triplett; in 1920 psychologist Floyd Allport classified it as social facilitation.
For example, assume your employer has asked you to perform a fairly simple job, such as cleaning up a specific area of work. Social facilitation theory suggests that if there were people watching you when you were working, you'd probably go the extra measures to put it in its place and make the area very clean.
Hence, the correct answer is social facilitation.
