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Stolb23 [73]
3 years ago
9

One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times

a day during a six week study. What is the independent variable, the dependent variable, the control group, and the constant?
Biology
1 answer:
Lunna [17]3 years ago
5 0

Answer:

The independent variable is the fish feed that is being fed to the fish. This is because this variable is what is being varied to affect the dependent variable. In this case, the dependent variable is fishes – more specifically, maybe their weight.   The constant variable is the fish tank size and conditions. This variable is kept constant in the experiment and does not change because changing it would alter the experiment. The control group - that is used to compare the results with those of the treatments - is the tank being fed normally.

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What effects do humans have on erosion
denpristay [2]

Answer:

Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.

hope this helps:)

3 0
3 years ago
As the size of some animals has evolved to greater sizes, the effectiveness of their adaptations that promote exchanges with the
mezya [45]

Answer:

More branching or folds.

Explanation:

Adaptation may be defined as the ability of the organism to adapt and survive according to its environment. Physical, physiological and chemical changes occur in the body of organism for the adaptation process.

The evolution of the increase in the size of the animals might also changes their internal physiology. The lungs and digestive tract also evolved as the size of the organism get bigger. The lungs has the alveoli to increase the surface area and inhalation of more oxygen in the body. Digestive system has villi or folds that increases the surface area for digestion and absorption.

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3 0
2 years ago
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myrzilka [38]

Answer:

a

Explanation:

n.a

6 0
2 years ago
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AfilCa [17]
A species <span>a group of organisms that have similar traits and are able to produce fertile offspring. 

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4 0
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