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Lorico [155]
3 years ago
6

2. How many substances are there in the unlabeled mixture? What were they?

Biology
1 answer:
andriy [413]3 years ago
3 0
There were two liquids—mineral oil and iron nitrate—and four types of solids—high-density polyethylene black squares and red tubes, alu- minum, and zinc.
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Phloem is the food conducting tissue that has a two-way flow.

Explanation:

Plants prepare food on their own and plants also have conductive cells that carry out transportation process. Plants are divided into two types based on their conductive system i.) vascular plants  ii.) non vascular plants.

Vascular plants are those plants which have special conductive cells called phloem and xylem.

Xylem transports water from roots of the plants to other parts of plants and also provides mechanical support to plant. It is uni-directional.

Phloem is the food conducting tissue that transports food to plant and also have bi-directional movement.

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