Question

Frank is doing an experiment to find out how the amount of oxygen dissolved in water affects the growth of algae in a body of water. He dissolves different amounts of oxygen in ten otherwise identical samples of water.

What should Frank do next?
A.
Place each sample of water in a freezer, and measure the temperature at which each freezes.

B.
Add equal amounts of algae to each sample of water, and measure the rates at which they grow.

C.
Carefully bring each sample of water to a boil, and measure the temperature at which each boils.

D.
Add a pair of minnows to each sample of wa

Answer 1

@SepticSwee

Answer 2

@TheEdwardsFamily

Answer 3

B. Add equal amounts to get accurate results.

Answer 4

Dr. Murray's science class recently read about an experiment that had surprising results. They decided to perform the experiment in their class, but they used more advanced methods. Their results
A.
must be completely different, but they are more reliable.
B.
must be the same as the recorded results, but they are more reliable.
C.
could be the same as the recorded results, or they must be inconclusive.
D.
could be the same as before, or they could be completely different.

Answer 5

@ronlover101

Answer 6

@TheEdwardsFamily

Answer 7

@SamsungFanBoy

Answer 8

@undeadknight26

Answer 9

I think c. not sure

Answer 10

What type of organism is a one-celled organism that functions as a single unit?
A.
precellular
B.
multicellular
C.
bicellular
D.
unicellular

Answer 11

Maybe d

Answer 12

oh because uni

Answer 13

Directions: Drag each label to the correct location on the chart. Not all labels will be used.

Liam wants to design an experiment to test the effect of salt on plant growth. He writes the following hypothesis: Increasing the amount of salt in the soil that geraniums are grown in will cause a reduction in their growth rate.

Based on Liam's hypothesis, complete the chart below by determining the independent and dependent variables that he should use in his experiment.

Answer 14

nvm no more help