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Ksenya-84 [330]
3 years ago
10

One function of the hematic system is to _____.

Biology
1 answer:
Alex777 [14]3 years ago
6 0
Distribute blood through the body
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Plant store there food in there roots.
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As human travel increases, the number of introduced species likely decreases. increases. stays the same. is eliminated.
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B.) Increases

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Which of the 8 planets are considered to be inner planets?
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Describe the actual and relative sizes of a virus, a bacterium, and a plant or animal cell.
anzhelika [568]

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The animals are categorized into 2 groups - eukaryotes and prokaryotes. The microbes like bacteria are coming under prokaryotes. They are unicellular organisms and without a true nucleus.

Viruses are the connecting link between the living and non - living. They are smaller than bacteria. The microbes less than 100 micrometer can't be seen by the naked eye. They can only visible under a microscope.

Viruses like polio, flu virus sizes are 10nm. But some of the viruses are also less than 10nm. The size of bacteria is 1 micrometer. The viruses are 10 times smaller than the bacteria.

The eukaryotic organisms are more advanced and multicellular. Their cell size is larger than bacteria and viruses. The red blood cells under the light microscope are 8 micrometers. The typical animal cells like sperm are 60 micrometers and a skin cell is 30 micrometers. The plant cell for example pollen is 90 micrometers.

The eukaryotic cells sizes are more than prokaryotes like bacteria.

3 0
3 years ago
In 1966 dr lynn margulis formulated the endosymbiotic theory, which examines the cooperative existence of multiple prokaryotes o
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<span>The mitochondria in eukaryotic cells originated from prokaryotic cells, bacteria that were once free-living. The mitochondria have their own DNA, which is inherited from the mother in most species. Similarly, plant cells have organelles called plastids which contain their own DNA and originated from free-living bacteria. The chloroplasts in plant cells, which convert the energy of sunlight into chemical energy via photosynthesis, are a kind of plastid, and they originated from bacteria that could do photosynthesis.</span>
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2 years ago
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