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KiRa [710]
3 years ago
11

A student wonders if adding fertilizer to the soil will make tulips grow faster. The student’s hypothesis states, “If fertilizer

is added to the soil, then the tulips will grow faster, because fertilizer adds nutrients to the soil.” Which of the following variables is the independent variable?
Biology
2 answers:
yawa3891 [41]3 years ago
6 0
The fertilizer is the independent variable.

Serhud [2]3 years ago
4 0

Answer: Fertilizer

Explanation:

Independent variable can be defined as the factor which can be controlled by the person performing the experiment.

The experimenter can control whether he will put fertilizer in soil or not. The growth of tulips will depend on the fertilizer as it is a source of nutrient to the plant.

here, the hypothesis will be either accepted or rejected based on the result of experiment.

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3 years ago
Why does diversity increase as height above land increases​
wolverine [178]

Biodiversity rises with altitude initially before falling with height beyond that. Up until it reaches a diversity peak at about 1 300 to 1 800 m.

  • The biodiversity increases at higher geographical locations because There are more hiding locations. They are better for crop growth. They frequently include more than one kind of habitat.
  • As latitude or altitude change, so does biodiversity. As we descend from high to low elevations, the diversity increases (i.e., from poles to equator).
  • While the environment is harsh and plants have a brief growing season in the temperate region, tropical rain forests provide year-round growth-friendly circumstances.
  • This enables the emergence and expansion of several species. On a mountain, there is an initial increase in species diversity after which there is a decline in species variety as you go up in elevation.
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learn more about biodiversity here: brainly.com/question/26110061

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7 0
2 years ago
Describe the role of producers in a food web. Are producers the basis of all food webs? Justify your answer. please help me!!!
Thepotemich [5.8K]

Answer:

The producers play main role in the food chain and food web as well. These organism make food by the help of the process known as photosynthesis.

Only producers have the ability to make food by trapping sunlight. All the living source needs energy to survive.

The source of food is producers so living things cannot survive without food. So there producers are considered as the main component of food chains and food web.

hence, they play a very vital role in the environment.

6 0
3 years ago
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Hi. Please answer these questions .It's really Urgent.
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3. I said some in the first paragraph.

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3 years ago
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NARA [144]
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