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Margaret [11]
3 years ago
12

Speciation is found on the principle of genetic mutations and

Biology
2 answers:
Julli [10]3 years ago
7 0
Speciation is founded on the principle of genetic mutations and
<span>
speculated genetic possibilities</span>
xxTIMURxx [149]3 years ago
4 0

Your answer would be "speculated genetic possibilities."

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Which best represents a simple food chain?
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Here is a simple food chain:

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What is the main function of the nervous system in the human body?
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The nervous system transmits signals between the brain and the rest of the body, including internal organs. In this way, the nervous system's activity controls the ability to move, breathe, see, think, and more. The basic unit of the nervous system is a nerve cell, or neuron.

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The _____________ cells in the _________________ of a nephron can cause and increase or decrease in body pH. A. intercalated; co
gayaneshka [121]

Answer:

The intercalated cells in the distal convoluted tubule of a nephron can cause and increase or decrease in body pH.

Explanation:

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Two types of cells regulate the acid-base and volume homeostasis.

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Filtered bicarbonate is predominantly reabsorbed from the proximal convoluted tubule about 80% and the remaining bicarbonate is reabsorbed from the thick ascending limb of the loop of Henle, the distal nephron, specifically the distal convoluted tubule & the connecting tubule, and finally the cortical and both the outer and inner medullary collecting duct.

Intercalated cells are enriched in mitochondria, and express proteins involved in transport of proton equivalents such as vacuolar H+-ATPase, carbonic anhydrase II and bicarbonate transporters. There are two types of intercalated cells Type-A and Type-B.

7 0
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Iteru [2.4K]

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The correct answer is A  bacteriophages inject only DNA into the bacteria.

Explanation:

Bacteriophages are a specific type of virus that infect bacteria.During the course of infection bacteriophage releases an enzyme known as lysozyme which creates a hole in the cell wall of the bacteria.

   After doing that(creating a hole) bacteriophage inject its DNA inside the bacterium.

   The injected DNA undergo gene expression by utilizing the gene expression machinery of bacteria which ultimately result in the formation of coat protein.The DNA is then packed within the coat protein to form progeny phages.The progeny phages then disrupt the cell wall and get released from the bacterium in search of a new host.

4 0
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