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max2010maxim [7]
4 years ago
7

Life-forms that existed during the paleozoic era included ____.

Biology
2 answers:
Kisachek [45]4 years ago
4 0
D all of the above is the correct answer with Ed gen uity 
sdas [7]4 years ago
3 0
The correct option is D. all of the above
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B

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A cannot be true as photosynthesis requires carbon dioxide and water and uses light energy to break bonds and form oxygen and glucose

C cannot be true as chloroplasts contain chlorophyll which gives the cell its green colour by not absorbing green wavelengths of white light

D is not right as I do not believe photosynthesis is a basic function

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an experiment was designed to test whether students could squeeze a clothespin more times in one minute after resting or after e
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Answer:

The correct answer would be - the number of times the student was able to squeeze the clothespin or rate of clothespin squeezing.

Explanation:

The dependent variable is the variable that depends on the change in the independent variable and measured or needs to be found in a scientific experiment or investigation.

In this experiment, the independent variable would be an exercise to found the effect on the change of the rate of clothespin squeezing or the number of times the students are able to squeeze the clothespin.

Thus, the correct answer would be - the rate of clothespin squeezing.

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