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PSYCHO15rus [73]
3 years ago
5

Which is characteristic of a mineral? A. It must be man-made and amorphous. B. It must be man-made and crystalline. C. It must b

e naturally occurring and amorphous. D. It must be naturally occurring and crystalline.
Biology
1 answer:
Sladkaya [172]3 years ago
5 0
It is d because most minerals compose of crystalline
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Explanation:

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How are absorption and transpiration involved in the movement of water through the xylem of a plant?
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Plant hormones serve as chemixal mesenhers between cells and tissues. Auxins is a plant hormone that causes the cells on the sha
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Answer:

This question is incomplete and lacks options, the whole question is:

Plant hormones serve as chemical messengers between cells and tissues. Auxin is a plant hormone that causes the cells on the shady side of a plant shoot to elongate. The response enabled by auxin is known as -

Options are:

A. geotropism

B. transpiration

C. phototropism

D. photosynthesis  

The correct answer is c.

Explanation:

Phototropism is known as a natural and organic movement of a plant towards the light. This is due to the natural ability of a plant to change direction based on changes in lighting in the environment. But external stimulus is not enough. It must generate some changes inside the plant that make it react in this way: hormones. A hormone is a chemical substance produced in one tissue and transported to another, in which it exerts one or more highly specific effects.Auxins are members of a group of plant hormones that are more beneficial to stimulate plant growth, it is the responsible mechanism of the response to phototropism in plants, which tends to be concentrated in the region of the stem and leaves, when a plant lacks this, it can be noted since the bending towards the light source is little or no, that is, auxins make the cells of the stem growth region (rhizomes and stems) lengthen.

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2 years ago
When are organelles like mitochondria and endoplasmic reticulum divided up between daughter cells?
MatroZZZ [7]

Answer:

Anaphase

Explanation:

During anaphase, cytokinesis – which is the pinching off of the cell membrane – the organelles which duplicated during the prophase are roughly equally divided between the two dividing cells. This is because these organelles are well distributed across the cytoplasm of the mother cell.

5 0
3 years ago
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