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BARSIC [14]
3 years ago
7

Darwin visited the Galapagos Islands while on a journey aboard the Beagle. What observation led Darwin to start thinking about e

volution?
Biology
1 answer:
never [62]3 years ago
6 0
During the long voyage Darwin made many observations that helped form his theory for evolution. He visited tropical rain forests and other new habitats where he saw many plants and animals he had never seen before. This impressed him with a great diversity of life. He visited rock ledges that had clearly once been beaches that had gradually built up over time. 
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Current estimates suggest the number of prokaryotic organisms associated with the human body is equal to or greater than the num
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Symbiotic relationship

Explanation:

An average human body between 20 to 30 year of age with a weight of 74 kg and 170 cm contains about 30 trillion cells. The number of bacterial cells in the same man counts for about 39 trillion that is higher than the cell of the body.

The ratio between the bacterial cell to the human cell is about 1.3:1 which is almost equal or higher than the human cells.

Although the number of bacteria is almost equal or higher than the human cell, the main reason behind this relation is that these bacteria live in the symbiotic or mutually beneficial relationship with humans.

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The __________________ pulp of the spleen contains lymphocytes and serves to fight pathogens, whereas the __________________ pul
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Answer:

The given blanks can be filled with white pulp and red pulp.

Explanation:

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The spleen generates and develops the mature immune cells, which possess the tendency of finding and eliminating the pathogens. The white pulp of the spleen comprises the immune cells, that is, the B and T lymphocytes, which help in fighting against the pathogens.  

On the other hand, the red pulp of the spleen comprises connective tissue called the cords of Billroth, and various splenic sinusoids, which are filled with blood, providing it a red appearance. Its main function is to filter the blood containing microbes, pathogens, and worn-out or the defective RBCs.  

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Why does clean energy matter
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Answer:

answer down below

Explanation:

Clean Energy matters because it can help reduce problems associated with fossil fuels.

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