Answer:
Fenestrated capillaries
Explanation:
Fenestrated capillaries are found in some tissues where there is extensive molecular exchange with the blood such as the small intestine, endocrine glands and the kidney.
Answer:
False
Explanation:
Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg. They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.
The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.
Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.
Answer:
Fossil formation begins when an organism or part of an organism falls into soft sediment, such as mud. The organism or part then gets quickly buried by more sediment. As more and more sediment collects on top, the layer with the organism or part becomes compacted.
Malaria is transmitted to humans by the Anopheles mosquito, which injects the sporozoans stage of the organism Plasmodium.
<h3>
Sporozoans</h3>
Sporozoans are parasites that are capable of infections and causing disease in the human body. These parasites are single cell organisms, they move around the body by bending and twisting forms as the do not have a well developed organ for motility.
When the Anopheles mosquito bites their prey, the transmit the sporozoans into the body and they parasites causes Malaria.
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