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Delvig [45]
2 years ago
11

I will give 5 stars, thanks, and Branliest if there are two answers!!

Biology
2 answers:
Mariana [72]2 years ago
5 0

Answer:

a mineral is scraped or rubbed hardly on sandpaper or unglazed porcelain

( please mark me as brainliest that would be most appreiciated )

IRINA_888 [86]2 years ago
4 0

Answer:

The streak test is done by scraping a specimen of the mineral across a piece of unglazed porcelain known as a " streak plate."

Explanation:

The "streak test" is a method used to determine the color of a mineral in powdered form. The color of a mineral's powder is often a very important property for identifying the mineral. The streak test is done by scraping a specimen of the mineral across a piece of unglazed porcelain known as a " streak plate."

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Carbon atoms have four electrons in their outer shell. This means that a single carbon atom can form up to _______ bonds with ot
Levart [38]

Answer:

four

Explanation:

Carbon atoms have four electrons in their outer shell. So, it exhibits tetravalency & thus, a single carbon atom can form a maximum of four (4) bonds with other atoms

4 0
3 years ago
What are the structural characteristics that give the phosphoanhydride bond its high-energy status?
Bas_tet [7]

Answer:

The answer to the given question out of the four options provided is given by:

Option a. Hydrolysis products are more resonance stabilized.

Explanation:

The answer selection to the above question can be justified as Phosphoanhydride on hydrolysis releases free high energy as the bonds formed by phosphoanhydride are the bonds with high energy.

Therefore, the product of hydrolysis after releasing this energy is more resonance stabilized.

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3 years ago
In the rise of civilisation, leaders of sizeable groups often extract resources from group members for distribution and for the
iren [92.7K]

Answer:

The correct answer is letter "C": kleptocracy.

Explanation:

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6 0
3 years ago
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8 0
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Lena [83]

Sertoli cells are stimulated by <u>FSH</u>, while leydig cells are stimulated by<u> LH.</u>

<h3>Sertoli and Leydig Cells:</h3>

The creation of T is stimulated by LH in Leydig cells, while the production of regulatory molecules and the nutrients required for maintaining spermatogenesis are stimulated by FSH in Sertoli cells in concert with T. As a result, Sertoli cells indirectly control spermatogenesis via T and FSH.

The growth and maintenance of the male reproductive system and spermatogenesis depend on LH-stimulated Leydig cell androgen synthesis. The interstitial cells of Leydig, which are concentrated heavily in the testis of newborn boys and adult males following puberty, release testosterone. Interstitial cells are another name for Leydig cells. The interstitial spaces outside of seminiferous tubules are where they can be found.

Learn more about Sertoli and Leydig cells here:

brainly.com/question/13813012

#SPJ4

5 0
1 year ago
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