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defon
3 years ago
8

Who are the three main groups involved in natural resources and what are their roles?

Biology
1 answer:
Flauer [41]3 years ago
8 0

Biotic natural resources also include fossil fuels such as coal and petroleum which are formed from organic matter that has decayed. Abiotic: these resources come from non-living and non-organic material. Examples of these resources include land, fresh water, air, and heavy metals (gold, iron, copper, silver, etc.).

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Which of these describes science and it’s limitations?
marysya [2.9K]

Answer:

I think B and E.

Explanation:

Science is open to change.

Scientists conduct experiments based on testable hypotheses.

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3 years ago
In animal cells, a cell plate divides the two daughter cells in cytokinesis.<br> true or false?
Anna [14]

Answer:

I think it's false.

Explanation:

Plant cells form a cell plate during cytokinesis, while animal cells form a cleavage furrow

7 0
2 years ago
Which Mechanism of microevolution caused the the beak of the medium gound finch population on dafne major to increase in size in
expeople1 [14]

Answer:

Natural selection

Explanation:

Microevolution refers to changes produced at a lower level than species. In genetics, microevolution is the change in the allelic frequency perceptible in a few generations. Most of these naturally produced changes by mutation, natural selection, genetic flux, genetic drift.

After the drought on Daphne Major, many of the plants producing small-sized seeds decreased their reproductive rate drastically. Consequently, there were almost no seeds available for the medium ground finch to feed. The population of this species also decreased to only a hundred birds over two years. Weather conditions and food availability influenced the survival of the animals.

With time, the finched population increased again, but now, the average size of the beaks was larger. The trait modification was related to the availability of only larger seeds with thick husks.

Eating large seeds with medium or small-sized beaks was impossible, so Finches needed to adapt, developing larger beaks to crack open the husks and eat the contents of the seeds.

<u>Natural selection was responsible for the rapid change in the finches´ population beaks size after the drought. </u>The evolutive force modifies the allelic frequencies, increasing the frequency of genetic variants that expressed the larger beak size and declining the frequency of the alleles that expressed smaller beak size.  

3 0
2 years ago
What is a coelom? Where exactly is the coelom in an animal? What is the function of a coelom?
Aleonysh [2.5K]

Answer:

A coelom is a hollow, fluid-filled cavity found in many living things, where it acts as a protective cushion for their internal organs. In some animals, such as worms, the coelom acts as a skeleton. The coelom also allows the internal organs to move and grow independently of the outer layer of the body wall.

Explanation:

A coelom is a hollow, fluid-filled cavity found in many living things, where it acts as a protective cushion for their internal organs. In some animals, such as worms, the coelom acts as a skeleton. The coelom also allows the internal organs to move and grow independently of the outer layer of the body wall.

8 0
3 years ago
Read 2 more answers
What is the layer under the Lithosphere called?
Hoochie [10]
Below the lithosphere is the asthenosphere.
3 0
2 years ago
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