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Arisa [49]
3 years ago
13

While walking along a streambed, you encounter a reedy seedless plant. upon closer inspection, you determine that the stems cont

ain large amounts of silica and have tiny scale-like leaves. this plant is most likely a?
Biology
1 answer:
lara [203]3 years ago
3 0
For the answer to the question above, this plant is more likely a kind of "liverwort plant"
they are flowerless and they are spore-producing plants and non-vascular. There are estimated of 9,000 species of this kind of plant.
I hope this helped
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List and explain the 3 paths natural selection can take.
evablogger [386]

Answer:

1. Stabilizing Selection  

2. Directional Selection  

3. Disruptive Selection  

Explanation:

Stabilizing Selection  

This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed:

Example:  For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.

Directional Selection  

This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side:

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Disruptive Selection  

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Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.

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