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seropon [69]
3 years ago
14

How many factors should a well-designed experiment test at one time? A. 1 B. 2 C. 3 D. depends on the number of experiment varia

bles
Biology
2 answers:
pishuonlain [190]3 years ago
8 0
A well-designed experiment should<span>  </span>test  1 factor at one time.
devlian [24]3 years ago
3 0
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.
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2 years ago
A pod of dolphins hunting and feeding on a school of fish is an example of
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A community interaction would be correct!
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3 years ago
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When two hormones must be present to achieve full expression of an effect, that interaction is called ______________.
Vinvika [58]

Answer:

Synergism

Explanation:

Synergism means cooperation, and is a term of Greek origin (synergy). Synergy is a work or effort to accomplish a certain very complex task, and to be able to succeed in the end. Synergy is the moment when the whole is greater than the sum of its parts.

In physiology, synergism occurs when the effect of two or more combined chemical agents is greater than the sum of individual effects. Concerning hormones, synergism happens when two hormones must be present for the full expression of an effect. That is, two hormones act for a certain purpose.

Example: FSH (follicle stimulating hormone) and estrogen cause oocyte maturation, but this only occurs if neither acts in isolation.

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3 years ago
What tropic hormone stimulates cortisol from the adrenal gland?
zhuklara [117]

Answer:

c) adrenocorticotropic hormone (ACTH).

Explanation:

A tropic hormone is defined as the hormone which is secreted from one gland and acts on another gland. ACTH is released by anterior portion of our pituitary gland during the condition of biological stress. After it is released, it acts on adrenal gland so that adrenal gland could secrete another hormone named as cortisol (steroid hormone). In response to stress, cortisol increases blood sugar level, elevates brain's use of glucose etc. so as to counter stressful situation.

Apart from this cortisol also helps in regulating our metabolism, reduces inflammation and controls salt and water balance.  

5 0
3 years ago
Jerry is older than Susie, and Susie is older than Lauren. Therefore, Jerry is the oldest.
NemiM [27]
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