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dusya [7]
3 years ago
12

Which piece of evidence supports the theory of continental drift? A. similar animal fossils found in South America and Africa B.

transform boundaries found near tropical coastal regions C. large deposits of volcanic rocks found on the ocean floor D. fossils of plants that typically grew in Arctic climates found in Africa​
Biology
1 answer:
Ket [755]3 years ago
3 0

A. similar animals fossils found in South America and Africa

Hope this helps :)

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In what way are the humerus and the femur similar? An x-ray of the human body showing the humerus and femur bones A. They both a
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How could stem cells prove helpful in the treatment of cardiovascular diseases? A) Stem cells can differentiate to form heart mu
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Answer:

A

Explanation:

Cardiovascular diseases involves the heart.

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7 0
3 years ago
What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1:100?
mafiozo [28]

Answer:

8900 CFU/mL

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Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

Calculation

Colonies * Dilution = CFU/mL

89          *  (100/ 1 mL) = CFU/mL

8900 CFU/mL

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4 years ago
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