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Dovator [93]
2 years ago
15

Describe the role of each of these white blood cells: • T cells: • B cells:

Biology
1 answer:
OverLord2011 [107]2 years ago
4 0

Answer:

B cells are at the centre of the adaptive humoral immune system and are responsible for mediating the production of antigen-specific immunoglobulin (Ig) directed against invasive pathogens (typically known as antibodies).

Explanation:

T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.

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The diet of a Triggerfish includes sea urchins overtime the increase use of recreational boats in areas inhabited by Triggerfish
Anastasy [175]

Answer:

D. decreasing in population.​

Explanation:

Triggerfish are the brightly colored fish and sea urchins are the globular animals, echinoderms. Triggerfish eat sea urchins for their survival.

An increase in the use of recreational boats over the area will damage the habitat of the triggerfish and also affect their food supply, it will result in a decreasing population of triggerfish. Due to lack of sea urchins and habitat disturbance, the Triggerfish population will decrease

Hence, the correct answer is "D. decreasing in population.​"

8 0
2 years ago
What is evaporation controlled by? 1.chloroplasts 2.pith 3.the spongy layer 4.stomata​
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Answer: stomata

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4 0
3 years ago
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If a persons metabolism were not functioning properly what symptoms might be presented?
kirza4 [7]

Answer:

They might gain or lose weight quickly, unexpectedly, and with no explanation unless thyroid is tested. Some of the symptoms that can occur with metabolic disorders are lethargy, jaundice and seizures. The symptoms expressed would vary with the type of metabolic disorder, mostly calcium metabolic disorders. Increased blood pressure, high blood sugar, excess body fat around the waist.

5 0
3 years ago
A student wants to know what effect temperature will have on the germination rate of radish seeds.  To test this, she obtains 3
kondaur [170]

Answer:

Hypothesis: IF the temperature is high, THEN the germination rate of radish seeds will increase.

Experimental Group: 20 Seeds in petri-dishes placed in the freezer and incubator each

Control Group: 20 seeds stored at room temperature

Manipulated Variable (IV): TEMPERATURE

Responding Variable (DV): GERMINATION RATE

Constants: Amount of water, same amount of time (2 weeks)

Explanation:

- The hypothesis is a testable explanation given to an observed problem. A possible hypothesis is IF the temperature is high, THEN the germination rate of radish seeds will increase.

- Independent or manipulated variable is the variable that is changed or manipulated variable in an experiment. The TEMPERATURE is the independent variable in this case.

- Dependent or responding variable is the variable that is measured in an experiment. In this case, the dependent variable is the GERMINATION RATE

- The experimental group is the group that receives the experimental treatment. In this case, the experimental group is the 20 Seeds in petri-dishes placed in the freezer and incubator each.

- The control group is the group that does not receive the experimental group. In this case, the control group is the 20 seeds stored or placed at room temperature.

- Constants are the variables that are kept unchanged throughout the experiment. In this case, the constants are Amount of water, same amount of time (2 weeks)

8 0
3 years ago
How does water on a road surface affect tire friction
Assoli18 [71]
C.decreases friction.............
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3 years ago
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