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OverLord2011 [107]
2 years ago
10

Jessica is doing an investigation to see how many birds come to the tree in her backyard each morning. She repeats her

Biology
1 answer:
Zolol [24]2 years ago
8 0

Answer:

D

Explanation:

I t would be different because she would of only did it once so not really an investigation

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Control group

Explanation:

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3 years ago
Can anyone please help?
coldgirl [10]
1. Suzie's hypothesis (i.e. prediction of results) is that ferns which are placed in white light will grow to a taller height after two weeks than ferns which are placed in other coloured light or in a closet.

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6. The constant variables were the amount of water each plant was given, the initial height of the plants, the age of the plants, the species of fern, and what she planted the ferns in.

7. To determine how each fern did, Suzie could measure the height in addition to noting the appearance of all the plants. E.g. did any look paler than the others?
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3 years ago
Suppose Gene 1 produces a protein involved in the development of the eye. In the simulation, what are two ways that you can prev
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Answer and Explanation:

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Answer:

Animals needs oxygen's to survive and plants need carbon dioxide to survive. The ozone layer reflects harmful UV rays from the sun to protect the things living on Earth.

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