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Neporo4naja [7]
2 years ago
8

35. Explain the cause and effect of nondisjunction.

Biology
2 answers:
Inga [223]2 years ago
5 0

Answer:

Explanation:

The other user is completely right.....  :))))

Muska~

Arisa [49]2 years ago
3 0

Explanation:

Nondisjunction: Failure of paired chromosomes to separate (to disjoin) during cell division, so that both chromosomes go to one daughter cell and none go to the other. Nondisjunction causes errors in chromosome number, such as trisomy 21 (Down syndrome) and monosomy X (Turner syndrome). It is also a common cause of early spontaneous abortions

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Ymorist [56]

Answer:

its option A. bright tail feathers of peacocks during breeding season

Explanation:

4 0
3 years ago
Outline three examples of cycles of inorganic nutrients. For each, outline the uses of the nutrients in living organisms, its me
Serggg [28]

The three examples of cycles of inorganic nutrients are Nitrogen, carbon and sulphur cycle.

Nitrogen is required to make amino acids and DNA in organisms. Carbon is the main component of glucose through which organism make energy, about 18 per-cent of the human body comprises carbon. Sulphur is an important constituent of some proteins, amino acids and enzyme cofactors.

Explanation:

The biogeochemical cycles like the nitrogen cycle are responsible for converting nitrogen into many chemical forms as nitrates, nitrites, ammonia. This process involves degrade decomposing animal and plant matter and naturally cleaning the environment also nitrites and nitrates become biofertilizers. The plants take nitrogen through their roots and in turn primary consumer in food chain ie. organisms consume the plant and eventually releases nitrogen as a waste material, dead and decaying body to the soil and cycle goes on.

In the carbon cycle the carbon is exchanged from the atmosphere to the organisms and then again to the environment. Plants perform photosynthesis by using carbon dioxide, primary consumer eats it and gets nutrition to perform cellular respiration, in turn, gets energy which gets dissipated and stored as biomass eventually in the course consumer die and replenish the soil with carbon. The Carbon emitted will keep cycling through air, water and soil.

The sulphur cycle involves the movement of sulphur between rocks, water and living beings and plants. Plants ( producers) absorb sulphur dissolved in water and animal consume these plants to replenish their sulphur requirement. And when organism die, sulphur enter the cycle again.

There will be a transfer of these inorganic nutrients to the trophic level in food chain.

3 0
2 years ago
What factor is described as sexual
mr Goodwill [35]

Answer:

The correct answer is - D. natural selection.

Explanation:

Sexual selection takes place due to competition between individuals of the intraspecies same-sex and of mate choice which driving the evolution of reproductive traits.

Sexual selection is a mode of natural selection as it leads to the evolution of specific traits. Other examples or options are not related to sexual selection directly and are not affected by sexual selection.

6 0
2 years ago
Can someone please check if the labels and everything on this diagram is correct.
STatiana [176]
The cell wall should be the outer layer of the cell. Where the flagellum connect to.
3 0
3 years ago
Read 2 more answers
What do all living things havw
s344n2d4d5 [400]

Answer:

all organisms need food for the energy required to live and grow.

8 0
2 years ago
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