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dolphi86 [110]
3 years ago
7

Which statement correctly uses the model above to explain how mitosis maintains genetic continuity? A. The chromosomes in cell 1

are the same as in cells 6.
B. Crossing-over occurs in cell 4. which increases genetic diversity in cells 6.
C. When the nuclear membrane reforms in cell 5. each nucleus becomes diploid in number. Option 3
D. The independent assortment that is represented in cell 2 ensures that cell 3 has the correct number of
chromosomes.

Biology
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

B

Explanation:

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alcoholic influence. not sure the exact tern for this however

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3) identify and describe three abiotic characteristics of ecosystems. Give an example of how each
HACTEHA [7]

Answer:

The abiotic characteristics of an ecosystem that affects man includes: Land surface, rainfall and relative humidity.

Explanation:

In the ecosystem, man occupies the terrestrial habitat which is affected by the abiotic factors listed above.

Abiotic (non- living) factors determine the type of biotic (living) community that is found in an ecosystem. These factors include Land surface, rainfall and relative humidity, just to mention a few.

--> LAND SURFACE: This is responsible for the marked variation in the vegetation of a place. For example, a mountain in the tropics may have a rain forest vegetation at it's base and an afroalpine vegetation near its peak. The gradient of the slope affects the growth of organisms. A steep slope encourage fast run - off of water and therefore encourages erosion, which results in shallow and infertile soil. This in turn AFFECT man's farming activities as there would be little to no crop yield.

--> RAINFALL: Water is a very important abiotic factor that affects life. The main source of water to terrestrial habitat is rainfall. When rain falls, a greater percentage of it sinks into the soil while the rest run- off into water bodies. Water is absorbed by root hairs into the plant and used for photosynthesis to produce food. The absence of rainfall in the environment of man could lead to drought which AFFECTS man negatively.

--> RELATIVE HUMIDITY: This is a measure of the amount of moisture in the atmosphere. It's usually high in hot wet regions. It affects the rate at which water evaporates from the body surfaces of organisms. Low relative humidity cause more water (sweat) to evaporate from body surfaces giving the human body a cooling effect. But in high relative humidity, the sweat cannot evaporate leaving the body feeling hot and sticky. This AFFECTS man as the body tries to cool off in a harder way by increasing rate of respiration and depth of blood circulation.

3 0
2 years ago
What is the definition of endocytosis
Kruka [31]

The meaning is, "the taking in of matter by a living cell by invagination of its membrane to form a vacuole."

8 0
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Answer:

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Explanation:

Dopamine is an inhibitory neurotransmitter involved in the pathology of schizophrenia.

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SOVA2 [1]
They relate because they show that during both natural selection and human evolution u could get a disease during both 
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3 years ago
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