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stiks02 [169]
3 years ago
9

Secondary succession begins with an area where

Biology
1 answer:
irinina [24]3 years ago
4 0
...an area where a ecological succession has already happened.
A secondary succession would occur where an area has been burned down or has experienced an event that has destroyed the prior ecosystem completely.
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Instructions: Select the correct layers. Identify the intrusions in the rock layer.
bagirrra123 [75]
The <span>intrusions in the rock layers would be H and J.
</span>Intrusions are formed by crystallization of magma infiltrations inside the Earth's crust. These intrusions happen as magma ascends slowly from within the Earth penetrating any space or fissure that it can find. Because this process is so slow, as pressure is released and temperature decreases, magma solidifies and crystallizes into solid intrusive rocks. They are usually the "layers" that brake through others and appear across several other layers in a different orientation than those.
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3 years ago
​what does the increase in incidents of polar bears visiting human settlements indicate
snow_lady [41]
The correct answer is "limited prey is driving the bears to seek food in human settlements".
Due to the warming of the Arctic waters, the ice is melting, resulting in a serious decline of floating winter ice. Polar bears need these floating parts of ice to hunt, therefore this new situation limits the hunting opportunities of the bears. That is why polar bears are driven to human settlements to look for food. 
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3 years ago
Consequences of human interaction with the natural environment
pochemuha

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.

Explanation:

So, What Happens if Pollution Continues to Increase? ... Breathing air pollution hampers the functioning of lungs among healthy people resulting in respiratory inflammation and heart problems. Living in a polluted area and breathing toxic air increases the risk of cancer. Air pollution weakens the immune system

5 0
2 years ago
After observing the F2F2 generation, what conclusion did Mendel come to?
Zolol [24]
In his experiment mendel first crossed tall and short peas plant and noticed that the F1 plants were all tall. in the second experiment he crossed the the F1 plants and noticed that short plants reappeared in the rate of 25% in F2 generation. in his third experiment he crossed he crossed F2 plants and noticed that when he crossed some tall plants with the shot plants the F3 generation contained short plant in frequency of 50%. after this observations mendel concluded that there were genes that could be only expressed in homozygous state but not in heterozygous state. these genes were later referred to as recessive alleles wheres the genes that prevented the expression of recessive genes were later referred to as dominant genes.     
6 0
3 years ago
Why do the ospring of meiosis result in greater genetic variation than the ospring of mitosis?
My name is Ann [436]

Answer:

While in mitosis, genes are generally transferred faithfully from one cellular generation to the next; in meiosis and subsequent sexual reproduction, genes get mixed up. Sexual reproduction actually expands the variety created by meiosis, because it combines the different varieties of parental genotypes.

Explanation:

I did research

7 0
3 years ago
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