How can extinctions and expansions occur in the same habitat? Explain your answer.

1 answer:

5 0

When a habitat is destroyed, the carrying capacity for indigenous plants, animals, and other organisms is reduced so that populations decline, sometimes up to the level of extinction. Habitat loss is perhaps the greatest threat to organisms and biodiversity.Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time.

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Genes are ____________

atroni [7]

Answer:

b. pieces of DNA is the correct answer.

Explanation:

A gene is a piece of DNA and it is present in the nucleus of all cell's

The function of the gene is to codes for a specific type of protein.

Genes convey the message that determines our characteristics

Genes are called as a functional unit of genetics.

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2 years ago

Which phrases describe types of freshwater wetlands? Select three options.

Anna35 [415]

Answer:

A, B, C

Explanation:

Freshwater wetlands are defined as the lands which have natural supply of water for the whole season due to geological or ecological factors such as tidal flows, connections with groundwater or flooding rivers.

There are three main types of freshwater wetlands swamp, marsh and bog.

A Swamp are able to support tall shrubs, tress, herbs and mosses to grow . These are covered with floodd water or gently flowing water and waterlogged soils prevent woody debris to decompose completely.

Marsh is found near lake, tidal water or rivers and remain flooded periodically. Marsh are the grassy areas covered by shallow water and help to overgrown with coarse grasses, rushes and sedges.

Bog is defined as an area where moss or mots decomposes slowly and form peat . They are characterized by acidic waters, a floor covered by a thick carpet of sphagnum moss and spongy peat deposits. they are generally found in northern climates which support precipitation of water.

Hence, the correct answer is A, B, C.

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What type of microscope would be best for viewing the samples you created in real life?

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Answer:

The type of microscope depends upon the type of sample created.

For observing a sample just to check out its presence of any substance, you can use a simple microscope, and to observe a sample by its morphological features with varying objective lens, you can use compound microscope. To study deep details of the sample, a microscope of high magnifying power like electron microscope can be used.

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