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xxMikexx [17]
3 years ago
12

A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl of grey gravel. To get t

his hypothesis, the student places one goldfish in a bowl with red gravel and another goldfish in a bowl with grey gravel. The color of the gravel is the ______
Variable in the experiment.
Biology
2 answers:
Ugo [173]3 years ago
6 0

Answer:

The correct answer will be- independent variable.

Explanation:

A scientific experimental design must include three types of variables which are independent variable (which can be manipulated), dependent variable ( which has to be tested and depending on the independent variable) and constant variable (which is kept constant).

In the given question, since the student wants to study the difference in the activeness of the goldfish in red and grey gravels, therefore, he performed the experiment with different gravels.

In this experiment, <em>the independent variable is the color of the gravel</em> as it can be changed as well as the dependent variable depends on this variable.

Thus, the independent variable is the correct answer.

Strike441 [17]3 years ago
3 0
I think the answer would be independent.
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Is water polar or nonpolar​
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Answer:

Polar

Explanation:

A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons. The hydrogen atoms have one electron each.

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The plants in this ecosystem are dark in color to absorb sunlight, covered in hair and grow in clumps. What type of ecosystem co
Rufina [12.5K]

Darker colors absorb and retain warmth than warm tones. As a result, plants in the tundra have dark-colored leaves, hairy and clumped and stems to help them absorb solar heat faster and stay warm for longer periods of time. So it could be tundra ecosystem according to the given scenario.

<h3 /><h3>What is tundra ecosystem?</h3>

Tundra ecosystems are treeless areas found in the Arctic and on mountain peaks where the climate is cold and windy and rainfall is scarce.

Much of the year, tundra lands are covered in snow, but summer brings bursts of wildflowers.

Darker colors absorb and retain warmth than warm tones. As a result, plants in the tundra have dark-colored leaves, hairy and clumped and stems to help them absorb solar heat faster and stay warm for longer periods of time.

Thus, the correct ecosystem for the given condition is tundra.

For more details regarding tundra ecosystem, visit:

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6 0
2 years ago
Extrusive rocks have larger grains than intrusive rocks.true or false and why
maxonik [38]

False because extrusive rocks have fine-grained texture due to the rapid cooling of magna above the earth surface. On the other hand extrusive rocks have course grained texture due to slow cooling of magna beneath the Earth's surface

5 0
3 years ago
For an occupational therapy assistant, do certain areas of the country have a better outlook? And where?
olga_2 [115]
Answer - Yes! of course. For better outlook you want to be in a city like Miami, FL U.S or someone populated cause that is where your able to find patients in need of recover. Other then that we will always need occupational therapy assistant because its crucial to the recover with some help and maintenance.

Reasoning - It is in fact true because in a city you can find a populated are that probably fractured their hand and needs some assistant for help recovery if the main doctor is not there.
3 0
3 years ago
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