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IRISSAK [1]
3 years ago
8

When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ vari

able.
a. environmental
b. observational
c. experimental
d. control
Biology
1 answer:
Sladkaya [172]3 years ago
4 0
The correct answer is the control variable. For example, if you want to measure how men and women like cats, you would present the same cats to all the people (that;s the constant variables) and gender is your control variable.
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Nostrana [21]

Answer:

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3. 10 chromosomes

Explanation:

1. The process of mitosis results in the two daughter cells from the same parental cell with exactly the same genetic material. Thus the two cells contain the same number of chromosomes as the parent cell. Therefore if a cell with 20 chromosomes undergoes mitosis will result in the 20 chromosomes.

2. During meiosis I two daughter cells are formed with different ploidy levels as the number of the chromosome reduces to half. Therefore the cell with 20 chromosomes results in two cells with 10 chromosomes.

3. During meiosis II, the two daughter cells formed from meiosis I result in the formation of two more daughter cells with an exact number of chromosome number that is 10 chromosomes.

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D is the only option that has anything to do with the last trimester which is what the question was asking about. Furthermore, because so much growth is occurring during this time the cow will need more food to support this growth. So, D is the best option.

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8 0
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Need help asap please :( I think its C but I don't think that's right
Mrac [35]

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