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NeX [460]
3 years ago
7

The outermost layer of the earth.the layer of the earth were earthquakes occur

Biology
1 answer:
Korolek [52]3 years ago
8 0
The outermost layer of the Earth is called the crust.
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What hormone causes an egg to begin to develop inside a follicle?
DerKrebs [107]
GnRH<span> stimulates (causes) the pituitary gland to produce </span>follicle stimulating hormone<span> (</span>FSH<span>), the hormone responsible for starting follicle (egg) </span>
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3 years ago
What is it called when the forest remains but its richness and well-being have deteriorated?
ira [324]

Answer: Biodiversity loss

Explanation:

The biodiversity can be defined as the variety of life forms on earth or any other region. The forests are rich sources of biodiversity. The hunting, poaching, animal trafficking, and other ill-legal related human activities are like to reduce the species richness in forests. As many species are dependent upon other species for food, mate and other requirements for completing the life cycle thus the well-being of the forests will get deteriorated by the loss of biodiversity.

8 0
3 years ago
Which process depends on binding between specific molecules on both the host and pathogen, so that the pathogen can gain a stabl
Degger [83]

Adhesion depends on binding between specific molecules on both the host and pathogen so that the pathogen can gain a stable foothold on host tissues.

<h3>What is adhesion?</h3>

In epidemiology, adhesion makes reference to the process in which pathogen and host interact during an infection.

The adhesion process is fundamental to reach the survival of the pathogen during a particular infection.

These pathogens can be any type of microorganism able to cause harm to the host (e.g., bacteria and fungi).

Learn more about the adhesion process here:

brainly.com/question/15024792

3 0
2 years ago
What does excretion mean in science?
Dovator [93]
It means, process of eliminating waste matter..
3 0
3 years ago
What is the basic difference in effector function between helper and cytotoxic T cells?
3241004551 [841]

Answer:

Helper T cells stimulate B-cells to produce antibodies and killer T cells to destroy the non-self cells. Cytotoxic T cells on the other hand are direct attack cells. They can kill the micro organisms by creating pores on the invader's cell.

Explanation:

T lymphocyte mediated immunity of cell mediated immunity do not secrete antibodies but they help stimulate the B cells to produce them. Immature T cells are produced in bone marrow from where they migrate to thymus via blood. In the thymus maturation of T cells occur and then they migrate to lymphoid tissue and get differentiated into three types:

a. Helper T cells: As the name suggests, they help in activating other immune cells, in other terms they are the regulator of virtually all functions of immune system. Protein mediator called lymphokines are produced by these helper T cells in order to regulate the immune functions. Some examples of these lymphokines are: Interleukin-2 interleukin-3, interferon gamma. T helper cells stimulate the B-cells to produce antibodies.

b. Cytotoxic cells or killer T cells: The lymphokine interleukin-2 is responsible for the growth and proliferation of both cytotoxic T cells and suppressor T cells. With the help of receptor proteins on the surface of killer T cells, they bind to the specific antigen. After binding, they secrete a pore forming protein called perforins which create pores on the invaders cell membrane for water to enter into it thereby cell swells and finally lyse.

c. Suppressor T cells: They suppress the function of above two T cells.

5 0
3 years ago
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