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elena55 [62]
3 years ago
11

The Dub in “lub dub” is the closing of the ____________________ and _____________ valves because pressure in the arteries is gre

ater than in the ___________________.
Biology
1 answer:
astraxan [27]3 years ago
4 0

Answer:

The first heart sound (lub) can be heard the loudest at the mitral area. This sound represents the closure of the mitral and tricuspid valves and is a low pitched, dull sound at the beginning of ventricular systole. S2 – The second heart sound (dub)

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Why is the sky blue?
denpristay [2]

Answer:

As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. However, much of the shorter wavelength light is absorbed by the gas molecules.

Explanation:

3 0
3 years ago
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Monomers are the building blocks of which of the following? SELECT ALL THAT APPLY
kirill [66]

Monomers are molecules whose linkage between them form polymers.

<h3>What are monomers?</h3>

Monomers are molecules that have a low molecular mass.

<h3>Characteristics of monomers</h3>

  • When many monomers come together through chemical bonds they form a polymer, which is a macromolecule.

  • Natural monomers allow the formation of biomolecules found in living beings.

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Therefore, we can conclude that polymers, in short, are chains of monomers -generally joined by covalent bonds-.

Learn more about monomers here: brainly.com/question/24573189

3 0
2 years ago
Asexual reproduction can be advantageous for species that colonize new areas.
max2010maxim [7]

Answer:

True

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6 0
2 years ago
Granite rock is light in color. Which feature directly contributes to this color?
kondaur [170]

Answer: the amount of silica minerals in granite

Explanation:

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3 0
2 years ago
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Allen and andrew both have the same biological parents. Why do they not resemble either of there parents
taurus [48]
This can be because of their genetics. The siblings may not have inherited their parents looks, but maybe they inherited their grandparents looks, or even their aunts looks. This is all due to genetics. It's sort of the same thing, when two caucasian parents have an african-american child. That would be because somewhere along the family tree someone was african-american. 
Anyways, I hope this helps!

6 0
3 years ago
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