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myrzilka [38]
3 years ago
10

How do muscels become bigger? Describe what is happening to the muscle fibers over time?​

Biology
1 answer:
Gnom [1K]3 years ago
6 0

Answer:

When people lift weights, microscopic damage (microtears) occurs to the myofibrils within the muscle fiber. These microtears stimulate the body's repair response. ... The increased number of myofibrils causes muscle fibers to enlarge, increasing their volume and size.

Explanation:

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In coccidioidomycosis, _______ containing many endospores form in the lungs.
dolphi86 [110]

Answer:

spherules

Explanation:

Like histoplasmosis, coccidioidomycosis is acquired by the inhaling fungal spores.

<u>Arthrospores are formed by the hyphal fragmentation in this case. Once in body, fungus differentiates into the spherules which are filled with the endospores. </u>

Most of the C. immitis infections are self-limiting and asymptomati. The endospores are transported in blood, disseminating infection and thus leading to formation of granulomatous lesions on face and nose. I

<u>Thus, spherule is a thick-walled spherical structure which encloses the endospores and occurring in parasitic form of the fungi of genus Coccidioides.</u>

7 0
2 years ago
In what ways are autorhythmic fibers similar to and different from contractile fibers?
Leto [7]
I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They  repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open. 
5 0
3 years ago
Which structure has the least effect on the ability of a virus to infect and replicate in a host cell?
AleksAgata [21]
The answer is an envelope.

A virus is an infectious agent that can replicate only inside a host cell. When it is outside the cell, it consists of genetic material coated with protein capsid. Some viruses also have an envelope which covers capsid. The function of the envelope is to identify and bind some receptor sites on the host membranes. After fusing with the cell membrane, it allows to capsid and genetic material to enter the cell and infect it.
6 0
2 years ago
Read 2 more answers
Describe the matrix of bone tissue in intramembranous ossification and endochondral ossification
sattari [20]

Answer:

In intravenous ossification, bone develops directly from sheets of mesenchymal connective tissue. In endochondral ossification, bone develops by replacing hyaline cartilage. Activity in the epiphyseal plate enables bones to grow in length. Modeling allows bones to grow in diameter.

Explanation:

8 0
3 years ago
For ease of swallowing oral solid medications, place the drug on the back of the tongue.
sashaice [31]
The correct answer is true
3 0
3 years ago
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