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yarga [219]
2 years ago
13

Which organelle triggers the destruction of skin cells responsible for the webbing of skin between the fingers and toes of a dev

eloping fetus?
cytoplasm
nucleus
vacuole
lysosome
Biology
1 answer:
pantera1 [17]2 years ago
7 0

Answer:

lysosome

Explanation:

Apoptosis is the regulated or controlled death of cells. It is sometimes referred to as "programmed cell death." This occurs when external and internal factors trigger genes to produce "self-destruct" enzymes. These enzymes are thought to come from the lysosomes inside the cell. Our immune system is also involved in absorbing these cell parts and recycling them to make new molecules or cells

When humans are in early fetal development, the fingers and toes are connected by a webbing of skin between them. Later in development, apoptosis takes place whereby enzymes are released from the lysosomes to destroy these skin cells. As a result, when we are born, our fingers and toes are separated. You may know of someone that has not had digital apoptosis happen normally. They may have a couple of toes or fingers webbed together. This is not all that uncommon.

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Write a short note on malaria as a disease its causative, target organs symptoms and control.
anastassius [24]

Answer:

Explanation:Malaria is a life-threatening disease. It’s typically transmitted through the bite of an infected Anopheles mosquito. Infected mosquitoes carry the Plasmodium parasite. When this mosquito bites you, the parasite is released into your bloodstream.

Once the parasites are inside your body, they travel to the liver, where they mature. After several days, the mature parasites enter the bloodstream and begin to infect red blood cells.

Within 48 to 72 hours, the parasites inside the red blood cells multiply, causing the infected cells to burst open.

The parasites continue to infect red blood cells, resulting in symptoms that occur in cycles that last two to three days at a time.

Malaria is typically found in tropical and subtropical climates where the parasites can live.

What causes malaria?

Malaria can occur if a mosquito infected with the Plasmodium parasite bites you. There are four kinds of malaria parasites that can infect humans: Plasmodium vivax, P. ovale, P. malariae, and P. falciparum.

P. falciparum causes a more severe form of the disease and those who contract this form of malaria have a higher risk of death. An infected mother can also pass the disease to her baby at birth. This is known as congenital malaria.

Malaria is transmitted by blood, so it can also be transmitted through:

an organ transplant

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use of shared needles or syringes.

Symptoms of Malaria

The symptoms of malaria typically develop within 10 days to 4 weeks following the infection. In some cases, symptoms may not develop for several months. Some malarial parasites can enter the body but will be dormant for long periods of time.

Common symptoms of malaria include:

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high fever

profuse sweating

headache

nausea

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abdominal pain

diarrhea

anemia

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convulsions

coma

bloody stools.

Diagnosis and Treatment : infected person is diagnosed and treated with ACT drugs.

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A

A haploid cell formed in the male seminiferous tubules

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Answer:

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Explanation:

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