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dalvyx [7]
3 years ago
11

Which human activity has affected the nitrogen cycle? i. use of fertilizers ii. combustion of fossil fuels iii. deforestation?

Biology
1 answer:
horsena [70]3 years ago
8 0
Combustion of fossil fuels is the answer
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Which of the following can cause a mutation in a gene?
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Not sure

Explanation:

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Answer to what type of arthropod appendage is comprised of a single series of segments attached end-to-end, rather than branchin
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 The uniramous type of t<span>he </span>appendages<span> of </span>arthropods are comprised of a single series f segments attached end-to-end, rather than branching into two. The other type of arthropod appendages are biramous. The biramous limb <span>branches into two, and each branch consists of a series of segments attached end-to-end.</span>
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2. List and describe two characteristics that distinguish primates from other mammals.
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Cultural evolution and biological evolution are similar in some ways. Important distinctions between them include:
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Match the following. 1. period during the life of a cell when it has finished mitotic division G1 phase 2. period during the lif
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The cell cycle includes a series of events that results in the formation of daughter cells from a single parent cell. These events include interphase, followed by M phase. The interphase consists of three phases, G0 (Gap 0) phase, G1 phase, S (synthesis) phase, G2 phase, while the M phase consists two phases, karyokinesis (mitotic or meiotic phase) and cytokinesis. At the end of cell cycle, cell enters into G0 phase again and the cycle goes subsequently.

The sequesnce of cell cycle events can be written as follows:

G0→G1→S→G2→M→G0→G1→....

Thus, according to the cell cycle sequence, these terms can be matched as:

1. When a cell finishes its mitotic division, it enters to G0 phase, which is also known as rest phase. Thus, statement 1. matches with G0 phase.

2. The period between end of mitosis and synthesis of genetic material for next mitotic division shows G1 phase, in which cell prepares itself for division. Thus, statement 2. matches with G1 phase.

3. The period of interphase between synthesis of new genetic material and the beginning of mitosis is G2. Thus, statement 3. matches with G2 phase.

4. The period between two mitotic division is interphase. Thus, statement 4. matches with interphase.

5. The period of cell division, during which a cell is performing actual cell division is M phase. Thus, statement 5. matches with M phase.

6. The period of interphase, during which genetic material gets doubled is synthesis or S phase. Thus, statement 6. matches with S phase.


6 0
3 years ago
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