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Dvinal [7]
3 years ago
9

An index fossil represents a species that lived during

Biology
1 answer:
Vikentia [17]3 years ago
3 0

Answer:

geologic time

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How does incoming solar radiation change with latitude?
victus00 [196]

Answer:

solar radiation is the heat energy received from the sun into the solar system that also reaches the earth.

Polar regions receive the least amount of solar radiation, therefore, they have colder climates.

The equator receives the most amount of solar radiation, therefore, they have warmer to hot climates.

Explanation:

7 0
3 years ago
A controlled experiment is one that_______________.
Pachacha [2.7K]

Answer:B

Explanation:

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A student inoculates a gelatin tube and places it at 37C for the week. When he comes back he takes the tube out of the incubator
ycow [4]
<h2>Gelatin </h2>

Explanation:

Gelatin is a differential medium which tests the ability of an organism to produce an exoenzyme, called gelatinase (this enzyme hydrolyzes gelatin)

When gelatin is at a temperature below 32°C (or within a few degrees thereof), it is a semisolid material and at temperatures above 32°C, it is a viscous liquid

When gelatin is broken down, it can no longer solidify and if an organism can break down gelatin, the areas where the organism has grown will remain liquid even if the gelatin is refrigerated

No the conclusion by student is not right because the tube must be runny after incubation followed by refrigeration to be considered gelatinase positive

3 0
3 years ago
In what organelle does photosynthesis
Rina8888 [55]

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chloroplast is the answer

4 0
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Do humans have the right to impact the environment as much as<br> they do? Why why not?
DochEvi [55]

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yes

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Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

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