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iogann1982 [59]
4 years ago
8

Students working on plant extracts want to test the hypothesis.

Biology
2 answers:
Arisa [49]4 years ago
7 0

Answer:

D

Explanation:

Ganezh [65]4 years ago
5 0

Answer:

it is D humans as test subjects​

Explanation:

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C. They both attract mates with certain behavior.

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4 0
3 years ago
Scientists believe that Homo neanderthalensis appeared about
givi [52]

Answer:

a. 200,000 years ago.

Explanation:

Scientists believe that Homo neanderthalensis appeared about 200,000 years ago. The name Homo neanderthalensis was given to them because first evidence of their existence was found in Germany near Neander Tal. Their period of existence is part of the Pleistocene period and they are considered as the immediate ancestors of modern humans (Homo Sapiens).

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4 years ago
What is tuberculous​
irina [24]

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Tuberculosis (TB) is a disease caused by bacteria that are spread through the air from person to person. If not treated properly, TB disease can be fatal. People infected with TB bacteria who are not sick can take medication to prevent TB disease from developing in the future.

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4 0
3 years ago
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A chest radiograph of an asymptomatic 37-year-old man showed a 3-cm nodule in the middle lobe of the right lung. The nodule was
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3 years ago
For a behavior to evolve under the influence of natural selection, that behavior must be (1 point)
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Acquired through learning.<span>

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3 years ago
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