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Nina [5.8K]
4 years ago
15

Researchers are studying the way plants move in response to stimuli. Which scenario could be used to test phototropism? A) Two s

ets of plants could be placed in a dark room and the growth monitored. B) Two sets of plants could be placed in a lighted room and the growth monitored. C) One set of plants could be placed in a lighted room and one set in a dark room; plant growth is monitored. D) One set of plants could be placed in a room with a light on the right side and one set in a room with a light on the left side; plant growth is monitored
Biology
1 answer:
maks197457 [2]4 years ago
7 0
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
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Nikitich [7]

Answer:

Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.

Explanation:

The new species can be formed in one of the three ways that are allopatric, peripatric, and parapatric speciation.

The allopatric speciation gives rise to new species due to the geographical barriers present between them and the peripatric speciation occurs when a small population enters into a new habitat.

In the given question, species A is more closely related to species B as to species C. This could be due to the allopatric speciation or peripatric speciation but it would depend on the number of the individuals of the population that dispersed to a different elevation which provided a new niche.

Thus, the selected option is correct.

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3 years ago
The results of a laboratory test show that a type of bacteria called E. coli is living in the digestive tract of an animal. Do t
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Answer:

E. coli is a bacteria not a parasite. It is not harmful to animals

Explanation:

Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhea or illness outside of the intestinal tract. The types of E. coli that can cause diarrhea can be transmitted through contaminated water or food, or through contact with animals or persons.

it does not cause ill-

ness in animals, but the animals can

serve as carriers of the bacteria. These

bacteria can be found in cattle, sheep,

pigs, deer, dogs and poultry. Infected

animals, especially young ones, can

shed the bacteria in their feces. Cattle

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6 0
3 years ago
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Animals that live in herds like elphants have a clumped dispersion pattern because of 
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Another great difference is the composition. Cilia are made up of microtubules, while microvilli is made up of microfilaments.

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4 years ago
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