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sladkih [1.3K]
3 years ago
13

The first stage of cell division during which the chromosomes become visible as paired chromatids and the nuclear envelope disap

pears
Biology
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

chromosomes becomes visible at Prophase stage

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Studentka2010 [4]

Answer:

The answers are :-

1.What is the term that refers to the change that happens in a living organism because of a stimulus?

<u>c)</u><u> </u><u>stimulus</u>

2. The best example of an organism's response to a stimulus.

<u>d)</u><u> </u><u>dog barks when there are </u><u>fireworks</u><u>.</u>

3. The process by which living organisms stay the same.

<u>b)</u><u> </u><u>homeostasis</u>

4.How does a one-celled organism grow?

<u>c) It </u><u>divides</u>

<u>PLZZ</u><u> </u><u>MARK</u><u> </u><u>ME</u><u> </u><u>AS</u><u> </u><u>BRAINLIEST</u><u> </u>

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2 years ago
where the carbon atoms of acetyl coa end up and where the energy that was stored in acetyl coa ends up. krebs cycle
ruslelena [56]

Since each glucose molecule produces two acetyl-CoA molecules, the Krebs cycle must be completed twice to produce the four CO2, six NADH, two FADH2, and two ATPs.

  • Catabolic reactions occur within cells during cellular respiration. It is a biochemical process by which waste materials are removed and nutrients are broken down to generate energy, which is then stored in the form of ATP. The process of aerobic respiration needs oxygen.
  • The Krebs cycle, also known as the citric acid cycle, is the last step of oxidation for amino acids, lipids, and glucose.
  • Other than glucose, many animals rely on other substances for energy.
  • Protein's metabolic byproduct, amino acids, are deaminated and converted to pyruvate and other Krebs cycle intermediates.
  • They begin the cycle and are broken down, for example. On deamination, alanine turns into pyruvate, glutamate into -ketoglutarate, and aspartate into oxaloacetate.
  • Acetyl CoA is created when fatty acids are -oxidized and enters the Krebs cycle. It is the primary mechanism through which cells produce ATP. Complete nutrient oxidation results in the production of a significant amount of energy.

To know more about glucose check the below link:

brainly.com/question/13539511

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1 year ago
Mass wasting __________
marishachu [46]

I believe Mass wasting is caused by weathering and gravity.

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2 years ago
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Explain what happens to the zona pellucida after the egg is fertilised ​
vodka [1.7K]

write it in your own words:

"In humans, five days after the fertilization, the blastocyst performs zona hatching; the zona pellucida degenerates and decomposes, to be replaced by the underlying layer of trophoblastic cells. The zona pellucida is essential for oocyte growth and fertilization."

The zona pellucida supports communication between oocytes and follicle cells during oogenesis; protects oocytes, eggs, and embryos during development, and regulates interactions between ovulated eggs and free-swimming sperm during and following fertilization.

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2 years ago
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¿Qué tipo de célula apareció primero en la Tierra?:___, y se presentan en seres vivos como las:___ y se caracterizan porque:___.
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Answer:

Célula procariota y procariotas.

Explicación:

La célula procariota es un tipo de célula que apareció por primera vez en la Tierra hace unos mil millones de años. Estos tipos de células están presentes en los procariotas, lo que significa que estos organismos no tienen un núcleo verdadero o una membrana nuclear alrededor del núcleo y otros orgánulos de la célula. El ADN del organismo procariótico se encuentra en una parte central de la célula que se conoce como nucleoide. La pared celular de un procariota actúa como una capa adicional de protección, ayuda a mantener la forma y estructura celular y previene la deshidratación.

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3 years ago
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