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Rainbow [258]
3 years ago
11

What substances are involved in controlling the production of sperm and eggs in humans

Biology
1 answer:
sleet_krkn [62]3 years ago
4 0
What substances are involved in controlling the production of sperm and eggs in humans? Hormones.
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RSS<br>What happens in meiosis during telophase 2?​
ololo11 [35]

Telophase 2 is the final step of meiosis 2 in which homologous chromosomes reach the  opposite poles and four haploid cells are formed.

Explanation:

The telophase 2 ends up in four haploid (n=2) cells. It is in this phase the genetic material of the parent cell is divided into 2 daughter cells. The events taking place are nuclear membrane reappears (karyokinesis has taken place by now), spindle fibres and astral rays disappear, chromosomes decondensed to become chromatids (thin fibres), constriction on equatorial plate consequently four daughter cells formed.

6 0
2 years ago
All materials within ecosystems can be recycled.
netineya [11]

Answer:

All the things expect enegry are recycled.

Explanation:

  • When the decomposer decomposes the organic substances than they are taken by plants in the form of nutrition and minerals. Likewise, the food prepared by the plants are taken by animals and the nutrition is recycled.
  • The oxygen and carbon dioxide cycle is also recycled. When the animals releases carbon then the plants take it and gives out the oxygen. In this way oxygen and carbon dioxide cycle is also maintained in nature.

But incase of enegry it cannot be recycled but frequently transfered from one form to another form.

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3 0
3 years ago
Match the words to the definitions
dmitriy555 [2]
Sexual Reproduction
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6 0
2 years ago
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A general mechanism by which postsynaptic potentials are terminated involves Group of answer choices increased synthesis of the
jolli1 [7]

Answer:

The correct answer is - reuptake of the neurotransmitter molecule into the axon through a membrane transporter.

Explanation:

The action of a neurotransmitter at the postsynaptic cell or postsynaptic potentials is terminated by any of these mechanisms that are enzymatic degradation, diffusion or reuptake into the presynaptic cell by specific transporters.

After the desired biological response by postsynaptic potentials, in order to avoid over stimulation or termination of the postsynaptic potentials the neurotransmitter is taken back into the axon through a membrane transporter. This mechanism is to maintain a balance.

5 0
3 years ago
What components contributes to the mass of a photosynthetic organism
Semenov [28]

Answer:

The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water

8 0
2 years ago
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