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slavikrds [6]
3 years ago
6

What's the interaction between the different forms of environment

Biology
1 answer:
kakasveta [241]3 years ago
4 0
Abiotic and biotic factor
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In the peppered moth scenarios what is the variation? And the selection?
Morgarella [4.7K]

Variation is number of alleles for the wing color of the peppered moths. The wing color ranges from pure white to pure back.

Selection pressure is predation by birds.

Explanation:

In the wake of the industrial revolution, white-winged peppered moths had a large allelic frequency in the population compared to black-winged peppered moths. However, when the environment changed due to soot produced by industries (making the environment darker) white-winged peppered moths reduced while that of black moths increased.

This is because black moths were able to blend in and camouflage in the dark environment than white-winged peppered moths that stood out to their predators. Black moths, therefore, had an increased chance of reaching adulthood and passing their genes to the next generation. This increased the allelic frequency of black-winged peppered while that of white-winged moths reduced in the population.

Learn More:

For more on natural selection of peppered moths check out;

brainly.com/question/12918325

brainly.com/question/9231156

#LearnWithBrainly

8 0
3 years ago
What happens as humans use more land for development<br>​
Lina20 [59]

Answer:

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.

4 0
3 years ago
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In the last century, the extent of global rain forests has been reduced by _____. one-half
Elodia [21]

The correct answer is - one-half.

In the past century, the deforestation of the rainforests in the world had been devastating, and it is estimated that approximately one half of the tropical rainforests have been destroyed.

The reason for the large scale destruction of the rainforests is mainly because of clearing space for agriculture and for spaces where the cattle can graze. Unfortunately, the people that live the regions where the tropical forests are, are not well educated as to how to manage the land, and a big problem is that the soil of the rainforests is only good for 2-3 seasons, because it spends and erodes very quickly. Because of that, people just continue to clear more and more of it, thus leaving destroyed forest and destroyed soil behind them, without taking in consideration the long term effects.

4 0
2 years ago
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Which is the most likely reason that stem cell research is controversial?
Maksim231197 [3]
It's controversial because the best source of stem cells is a human embryo (an aborted fetus).
3 0
2 years ago
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In the diagram, what type of mutation is shown?
jeka94

Answer:

substitution - a base was changed

Explanation:

The nucleotide sequence CTT was changed to the sequence CAT. The T was substituted with an A. This changed the encoded amino acid from Glu to Val.

An insertion is where an additional base is added (e.g. if the sequence changed from CTT to CATT)

A deletion is when a base is lost (e.g. if the sequence changed from CTT to CT)

8 0
2 years ago
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