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AfilCa [17]
3 years ago
6

I need help I'm thinking is a but I'm not sure

Biology
1 answer:
sergejj [24]3 years ago
5 0
To test the effectiveness...

A. This variable should be controlled (the same in both groups).
B. The new chemical is what is being added to the experimental group.
C. This is the control group to which the treated couch should be compared.
D. This is the experimental group to which data should be taken.

Final answer: D
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Why is it important that your goals should be time bound​
Sonbull [250]

Answer:

Explanation:

Time-bound goals help provide a sense of urgency to the goal, a sense that it is important and needs to be completed. The uncertainty of business taints this ideal, however. so it is important that our goals should be time bound.

4 0
3 years ago
Which of the following statements describes how population size and population density are related?
kirill115 [55]
It should be the last one, but if you can pick more than one answer then I would do the first and last one but I’m confident that it would be the last one either way :) hopefully this is helpful
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3 years ago
Which one of the following factors contribute to hypertension?
beks73 [17]
I believe:

- high blood pressure

- medical illnesses ( diblabetes, stroke)

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please vote my answer brainliest . thanks!
7 0
3 years ago
How is dacite formed
wel

Answer:

Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Oceanic crust is hydrothermally altered causing addition of quartz and sodium.

7 0
3 years ago
Read 2 more answers
A bacterium that you isolated from pond water appears to use light for energy. Based upon this information, you inoculate the or
FinnZ [79.3K]

The question is incomplete as it does not have the options which are:

  • there was no sulfur compound added to the medium, that could be used as an electron donor.
  • no oxygen was added to the medium so the organism died.
  • there is some inhibitory chemical that is preventing the growth of the bacterium.
  • you were using the wrong type of sunlight as the energy source for the bacterium.

Answer:

There was no sulfur compound added to the medium, that could be used as an electron donor.

Explanation:

In the given question, the bacteria which are found in the pond uses light energy to use carbon dioxide and form the glucose molecule. These bacteria are known as phototrophic bacteria.

The process of photosynthesis requires an electron donor and an electron acceptor to use molecule.

The organism when provided the light and carbon dioxide artificially in a culture, the bacteria were not able to grow. The reason for this could be accounted as that there was no electron donor found in the media like sulfur which could donate the electron during the chain reaction.

Thus, the selected option is correct.

4 0
3 years ago
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