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hjlf
3 years ago
14

If a scientist is observing biotic and abiotic factors, which of the followin

Biology
1 answer:
Leya [2.2K]3 years ago
7 0

there is no examples.


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One difference between human cheek cells and onion cells is: 1. the presence of cytoplasm 2. the absence of a nucleus in the pla
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3. the absence of a cell wall in human cells

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Animal cells do not have cell walls. Cell membranes separate the cytoplasm of the animal cells from the surroundings and maintain their interior. Plant cells have cellulosic cell walls. A cell wall surrounds the cell membrane of a plant cell. Cell walls serve to provide structural support and protect plant cells from pathogens. Cell walls also help keep excess water out of cells so they do not burst. Therefore, human cheek cells would not have cell walls while the onion cells would have cell walls made up of cellulose.

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The fact that all organisms have DNA as their genetic material is evidence that
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All organisms descended from a common ancestor
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Which characteristics are necessary for a society to be considered a civilization?
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The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.

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Symbiosis is the ecological relationship between two or more organisms living closely together with some form of feeding relationship involved. The three main symbiotic relationships are: - Mutualism, where both organisms benefit. - Commensalism, where one organism benefits while the other organism is not harmed. All of them thrive off of the other organism.
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How does asexual reproduction limit variation in species?
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less of a chance for mutations

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