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kirza4 [7]
2 years ago
8

Which of the following best compares the male and female reproductive structures of a gymnosprem

Biology
1 answer:
Sauron [17]2 years ago
3 0

Answer:

gymnosperms produce male cones and female cones, and the pollen from a male cone fertilize the egg inside a female cone

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What is the difference between active and passive transport across the plasma membrane?
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Passive is when materials travel or move across some cell membranes that doesn't use cell energy. 

Active is the meaning of a movement that crosses across some cell membranes that requires the use of cell energy.

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The answer is that passive doesn't use cell energy but active uses cell energy.
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8 0
3 years ago
How do pioneer species make ecological succession possible on an island formed from a volcanic eruptions
SIZIF [17.4K]

Answer:

The correct option is <em>3. they break down rock into soil in which plants can grow</em>

Explanation:

When a disaster is such huge that even the soil and organic matter get removed from the place, then the succession that will occur in such kind of place will be termed as primary succession. For example, a volcanic eruption or an earthquake.

On the other hand, if after a disaster some of the organic matter remains on the land, then the succession that will occur will be termed as secondary succession. E.g a succession after fire

In primary succession, the pioneer species will be plants that require less soil such as the lichens. The lichens will break down the rocks into the soil and eventually new species of plants will start to grow on the land.

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