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FromTheMoon [43]
3 years ago
10

I need help with number 12

Biology
1 answer:
Vsevolod [243]3 years ago
3 0
A) I hypothesize that Tide will take out grass stains

b) Independent variable: thing that we are changing
The independent variable is the type of detergent

c) Dependent variable: thing that we are measuring
The dependent variable is how well tide will take.
out grass stains compared to other detergents

d) Control variable: another test that will stay the same
so we can compare it to the experiment
The control variable is another type of detergent
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Adults with more than a twelve (12)-month history of migraines were assigned randomly in a double-blinded study to receive treat
stich3 [128]

Answer:

Phase III.

Explanation:

Clinical research includes the different steps to test the particular drugs and its use for the medical treatment. Clinical research is divided into four main phases.

The phase III of the clinical research includes the double blinded study and its clinical trial on the patients. This phase determines the drug safety and efficacy. The therapeutic effect of the drug is tested directly in phase III of the clinical trial.

Thus, the answer is phase III.

6 0
4 years ago
Review the equations below used to describe photosynthesis and respiration (as provided in the background section of this experi
AleksAgata [21]

Answer:

Germinated seeds without leaves are used in the experiment in order to find good results.

Explanation:

It is very important to use germinated seeds without the presence of leaves in order to carried out the experiment because if the leaves are present, the process of photosynthesis started which automatically increases the rate of respiration of the seed. This test is performed in order to determine the rate of respiration not photosynthesis. So leaves will not used in the experiment in order to avoid any problem with the results.

5 0
4 years ago
How do the three types of distribution differ from one another?
Vera_Pavlovna [14]

Explanation:

direct channel allows the consumer to make purchases from the manufacturer while an indirect channel allows the consumer to buy the goods from a wholesaler or retailer. Indirect channels are typical for goods that are sold in traditional brick-and-mortar stores.

3 0
3 years ago
The water level at the beach changes during the day. What causes the different water levels?
dexar [7]

Answer:

C. The moon's gravitational pull and Earth's rotation

Explanation:

The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.

Hope this helped

:)

3 0
3 years ago
Describe the factors that influence the declining of Amphibians population​
Alex73 [517]

Answer:

Hypothesized causes for the declines include habitat destruction (the most obvious cause), climate change, pathogens, introduced exotic species, pollution, and increased UV radiation. These agents may act alone or in combination to contribute to the decline of amphibian populations.

Explanation:

I think this is the answer

Hope it helps you

8 0
3 years ago
Read 2 more answers
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