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Slav-nsk [51]
3 years ago
10

Question 12

Biology
2 answers:
Citrus2011 [14]3 years ago
5 0

Answer:

Increasing the surface area of a solid has no effect on the speed of dissolving. Hence, the correct answer is option B.

Explanation:

The increasing of surface area has no effect on the speed of dissolving at as it is irrelevant with the dissolving speed with the solvent. The dissolving effect air speed can be altered with the temperature and with the volume but is increasing of surface area has no relevance on the dissolving speed.

If the temperature is raised above the room temperature it helps in dissolving speed and dissolving quantity. The increase of surface area can we done by various ways such as expanding through mechanical method, etc.  

RoseWind [281]3 years ago
4 0
Increase the speed of dissolving

Explanation:
When they solid and liquids react, it will speed up the dissolving.
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which of the following types of energy reception is most activated when a person is watching a silent movie
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<h3><u>Answer</u>;</h3>

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Question 7 in the attachment, please help thank you so much!
sertanlavr [38]

Answer:

Here are the answers:

a. 4  Cell determination as an issue in the *rest is missing*

b. 4  They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned.

c. 4  I and III only

Explanation:

The passage demonstrates the importance of two factors in the development of an embryo: cleavage planes of division of embryonic cells and cell differentiation.

Cleavage Planes:

Cleavage basically refers to the division of the zygote into a large number of cells called blastomeres. Cleavage planes are geometrical lines or orientations along which cleavage takes place. Since, all embryonic cells are the precursors of some type of body cells, the cleavage planes determine if the cells are adequate for growth and development.

Cell Differentiation:

Cell differentiation is the transition of an undifferentiated cell into a specialized one. For example, stem cells are undifferentiated cells that develop into progenitor cells that mature into a specific cell lineage. For an embryo to regenerate, the presence of adequate embryonic stem cells is crucial. Embryonic stem cells are present in abundance before the gastrulation phase of embryonic development, after which they rapidly start differentiating.

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Answer:

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9. A current of 6.0 amps passes through a motor that has a resistance of 5.0 ohms. Calculate the
Lelu [443]
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