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ira [324]
3 years ago
13

A basic source of pollution is from unnatural sources and people.

Biology
1 answer:
Nonamiya [84]3 years ago
5 0
True
a 
d
c
Have a nice day

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Rocky mountain juniper (juniperus scopulorum) and one-seeded juniper (j. monosperma) have overlapping ranges. pollen grains (whi
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Mechanical isolation

Explanation:

mechanical isolation is a form of prezygotic reproductive barrier, whereby similar species organisms become isolated and unable to successfully interbreed with each other to form zygote, as a result of incompatibility of their reproductive organ or structure, which prevents them from copulating. As a result of this, both species become separated as there is no gene flow between both.

The two species of juniper can be said to be kept separate by <em>mechanical isolation</em>, due to the differences and incompatibility of their reproductive structure.

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Why might parasitic roots have developed in plants like the mistletoe?
Ganezh [65]

Answer:

Mistletoe is a parasite – it steals water and nutrients from trees. Technically, it is a “hemiparasite”, which means that it can generate some of its own resources through photosynthesis – it just needs that energetic kick from the sun to fuel the biological siege and subsequent invasion of the tree

Explanation:

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Nutrients move through the ecosystem<span> in biogeochemical </span>cycles<span>. A biogeochemical </span>cycle<span> is a circuit/pathway by which a </span>chemical<span> element moves through the biotic and the abiotic factors of an</span>ecosystem<span>. It is inclusive of the biotic factors, or living organisms, rocks, air, water, and </span>chemicals<span>.</span>
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Fill in the blank. In the -------- division of meiosis, chromatids split apart, becoming single chromosomes
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Cell
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The most numerous important and widespread sweat gland in the body are <br>​
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eccrine glands

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