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mezya [45]
2 years ago
7

Elastic cartilage and most hyaline cartilages are surrounded by a protective sheath called a:.

Biology
1 answer:
harkovskaia [24]2 years ago
6 0

Answer:

Perichondrium

Explanation:

Elastic cartilage (like hyaline cartilage) has chondrocytes located in lacunae and the tissue is surrounded by a perichondrium. The perichondrium (Figure 7–2) is a sheath of dense connective tissue that surrounds cartilage in most places, forming an interface between the cartilage and the tissues supported by the cartilage. The perichondrium harbors the blood supply serving the cartilage and a small neural component. Articular cartilage, which covers the ends of bones in movable joints and which erodes in the course of arthritic degeneration, lacks perichondrium.

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Which one of the following factors contribute to hypertension?
beks73 [17]
I believe:

- high blood pressure

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please vote my answer brainliest . thanks!
7 0
3 years ago
Within a gymnosperm megasporangium, which of the following developmental sequences is correct, assuming fertilization occurs? Gr
yan [13]

Within a gymnosperm megasporangium, the following developmental sequences that are correct, assuming fertilization occurs is: megaspore, female gametophyte, egg cell, sporophyte embryo. The last Option (Option D) is correct.

In gymnosperm megasporangium, the meiotic division produces four haploid megaspores from a single cell, three of which generally degenerate. The female gametophyte is formed by mitosis from the surviving megaspore.

Prior to fertilization, the male mature gametophyte needs to be transferred to the female gametophyte for fertilization to take place.

When the nuclei of the sperm encounter the nucleus of the egg cell in gymnosperms, it fuses with the egg nucleus to produce a diploid zygote.

Mitosis occurs in the fertilized egg to initiate the growth of a new sporophyte generation (the multicellular embryo of the seed.)

Therefore, we can conclude that we've understood the mechanism of developmental sequence in the gymnosperm megasporangium.

Learn more about the gymnosperm here:

brainly.com/question/4526473?referrer=searchResults

3 0
2 years ago
Help please? what traits do all organisms with no internal thermoregulation have?
sukhopar [10]

Answer:

The answer to the question is C ectothermy

Explanation:

The answer to the question is C ectothermy

The traits which all organisms with no internal thermoregulation have are called an Ectothermy. Ectothermy is an organism in which the inner behavioral heat sources are significant in the regulation of body temperature. This organism depends on their ecological heats source, which allows them to work at an efficient rate. Some of this organism stays in an area where temperatures are nearly constant.

5 0
2 years ago
Is there any explanation of a genetic explanation for substance abuse disorders?
White raven [17]
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8 0
3 years ago
HELP ASAP
Bas_tet [7]

Answer:

c

Explanation: trust me

6 0
3 years ago
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