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liraira [26]
2 years ago
6

If a cell were placed in a dark environment, which organelles would

Biology
2 answers:
Paladinen [302]2 years ago
8 0

Answer:

A. Chloroplasts

Explanation:

This is found in a plant & aids with photosynthesis

Plants need sunlight to grow and do their process of photosynthesis

Anna [14]2 years ago
7 0

Answer:

b.mitochondria

Explanation:

kasi environment nga

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Memory cells may take the form of B cells. T cytotoxic cells. T helper cells. All of the choices are correct.
topjm [15]

Answer:

Having considered how an appropriate primary immune response is mounted to pathogens in both the peripheral lymphoid system and the mucosa-associated lymphoid tissues, we now turn to immunological memory, which is a feature of both compartments. Perhaps the most important consequence of an adaptive immune response is the establishment of a state of immunological memory. Immunological memory is the ability of the immune system to respond more rapidly and effectively to pathogens that have been encountered previously, and reflects the preexistence of a clonally expanded population of antigen-specific lymphocytes. Memory responses, which are called secondary, tertiary, and so on, depending on the number of exposures to antigen, also differ qualitatively from primary responses. This is particularly clear in the case of the antibody response, where the characteristics of antibodies produced in secondary and subsequent responses are distinct from those produced in the primary response to the same antigen. Memory T-cell responses have been harder to study, but can also be distinguished from the responses of naive or effector T cells. The principal focus of this section will be the altered character of memory responses, although we will also discuss emerging explanations of how immunological memory persists after exposure to antigen. A long-standing debate about whether specific memory is maintained by distinct populations of long-lived memory cells that can persist without residual antigen, or by lymphocytes that are under perpetual stimulation by residual antigen, appears to have been settled in favor of the former hypothesis.

6 0
2 years ago
The health of coral reefs depend on several factors. One is clean water. Erosion on land causes rivers to dump mud on reefs, smo
snow_lady [41]

Answer:

D) When corals are babies floating in the plankton, fish swim with them and protect them from harm.

Explanation:

This is the statement that does not explain how fish and coral relate to one another. It is false that when corals are babies, fish swim with them and protect them. However, the rest of the statements are true. It is true that fish eat predators, and that they also eat seaweed and kelp that could smother the coral. Finally, it is also true that some fish live symbiotically with coral, luring prey for the coral to kill and eat.

7 0
3 years ago
Which explanation best explains the role of enzymes as catalysts in living systems?
AlekseyPX
Enzymes can be best described as catalysts in living systems. This is because enzymes accelerate chemical reactions without being used up in the process.
3 0
3 years ago
What is the slope of the line through (-2,-6) and (2,2)?​
Iteru [2.4K]

Answer:

The slope is 2

Explanation:

(2--6)/(2--2)=8/4=2

(y2-y1)/(x2-x1) the numbers besides the variables are subscripts.

3 0
3 years ago
What process can account for a normal xy male producing a sperm carrying two y chromosomes?
VikaD [51]

The answer is aneuploidy. This is the result of a malfunction in the process of meiosis that produces gametes, in the male.  The is caused by a failure in non-disjunction hence an extra Y chromosome occurs in one of the formed gamete cells during anaphase II.






7 0
3 years ago
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