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IceJOKER [234]
2 years ago
8

Which organisms can respond to stimuli?

Social Studies
1 answer:
dangina [55]2 years ago
5 0

Answer:

D.I, II, III, and IV

Explanation:

All living things are able to respond to stimuli in the external environment. For example, living things respond to changes in light, heat, sound, and chemical and mechanical contact.The organism responds to the stimuli by means of a number of effectors, such as muscles and glands.

As humans, we detect and respond to stimulus in order to survive. For example, if you walk outside on a very sunny day, your pupils will constrict to protect your eye from taking in too much light and being damaged. Your body reacts to the stimulus (the light) to protect you.

Insect responses to stimuli can simplify rearing. For example, the positive phototaxis of scale crawlers makes them easily collected.

Like all organisms, plants detect and respond to stimuli in their environment. Their main response is to change how they grow. Plant responses are controlled by hormones. Some plant responses are tropisms.

A research group has now discovered that bacteria not only respond to chemical signals, but also possess a sense of touch. The researchers demonstrate how bacteria recognize surfaces and respond to this mechanical stimulus within seconds. This mechanism is also used by pathogens to colonize and attack their host cells

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Answer:

Socially or economically disadvantaged subjects should be excluded from research protocols that are not designed specifically for them, Option A.

Explanation:

A 'vulnerable population' is a group of individuals who need greater  protection than the normal individuals in case they participate in a research, because a research may require include some risks. This type of population includes pregnant women, neonates, children, economically pr socially disadvantaged. Even who are terminally ill are included in such type of population.

They should not be included in research that are not meant specifically for them. They should not included by paying them a nominal amount or for phase 1 as stated in other options.

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The Immigrant Aide Society encouraged black freedmen to return to Africa.
Elanso [62]
Yes the I.A.S. did encourage them to do that

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Answer:

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