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2 years ago

During which phase of mitosis does the nuclear envelope re-form?

Biology

1 answer:

LiRa [457]2 years ago

6 0

Answer:

In which phase of mitosis do chromosomes align at the center and spindle fibers become visible? Explanation: Mitosis involves four distinct stages: prophase, metaphase, anaphase, and telophase. Prophase is the first step of mitosis, during which chromosomes condense and the nuclear envelope dissolves.

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Describe the role of transfer RNA during the process of protein synthesis.

Fofino [41]

Answer: ribozomes consist of enzymes needed for protein photo sythesis transfer rna trna brings amino acids to the ribosomes where the amino acids are signed up with like a string of beads to form a protein there is a various trna for carrying each type of 20 amino acids utilized to construct proteins

Explanation:

6 0

2 years ago

Which of the following is one of the biggest threats to endangered species? *

kicyunya [14]

The over-harvesting is one of the biggest threats to endangered species.

Option: B

Explanation:

An organism or group of organism or species that is expected to reach extinction in the immediate future, either internationally or under a limited political authority, is understood as an endangered species.
This may be at threat because of factors including habitat loss and poaching or over-exploitation.
There are many species which are getting vanished day by day due to pollution or poaching, for an instance, pangolins, who have been hunted beyond he limits for their skin, scales, meat, and some body parts are utilized by people in making traditional medicine.
The Indian and Philippine pangolin are listed as endangered while the Sunda and the Chinese pangolin are rated as critically endangered by the IUCN, which contributed to the Convention on International Trade in Endangered Species (CITES) prohibiting global trade that had something to do with pangolins or their components.

4 0

2 years ago

In reference to the electrical activity of the heart, what signals the end of the cardiac cycle

Lelu [443]

Answer:

The electrical impulse travels from the sinus node to the atrioventricular node (also called AV node). There, impulses are slowed down for a very short period, then continue down the conduction pathway via the bundle of His into the ventricles.

3 0

2 years ago

Please sort each of the following statements as being either an external or internal factor that affects the growth of microorga

alexandr402 [8]

Answer:

External factors can be described as factors which give rise to a situation from outside. Internal factors bring a change or give rise to a situation from internal conditions.

External Factors:

Temperature of food storage during processing.

Humidity of the storage environment

Presence of gases, such as CO2, during packaging

Preservatives, such as salt and sugar

Handling of food by manufacturers

Internal Factors:

pH of the food

Presence of antimicrobial compounds

Nutrient content (Such as vitamins and minerals)

Moisture content or water activity

Protective structure of food, such as feathers, hide and skin

8 0

3 years ago

Which of the following statements about a controlled experiment is accurate?

kirill [66]

Answer: There is no following statements. But a controlled experiment is a scientific test that is directly manipulated by a scientist, in order to test a single variable at a time. The variable being tested is the independent variable, and is adjusted to see the effects on the system being studied.

6 0

2 years ago