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Aleonysh [2.5K]
3 years ago
10

Preguntas de consulta:

Biology
1 answer:
zheka24 [161]3 years ago
6 0
Me don’t speak Spanish I just need points
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A scientist hypothesized that one species of dinosaur was the ancestor of a later species of dinosaur. She then found fossil evi
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Competition among individuals in population is most likely to occur when:
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4 years ago
All of the following are examples of postzygotic reproductive isolating mechanisms EXCEPT Select one: a. two plant species flowe
BartSMP [9]

Answer:

a. two plant species flowering at different times.

Explanation:

<em>The only option that is not a post-zygotic reproductive isolation mechanism would be option a, when two plant species flower at different times.</em>

Post-zygotic reproductive isolation mechanisms are those mechanisms that act to ensure that the product of fertilization remains invalid. This is as opposed to pre-zygotic isolation mechanisms that act to prevent fertilization and hence, formation of zygotes.

In option b, c, d and e; the zygote has been formed already and all the forces are just acting to ensure that it remains invalid. whereas in option a, there is no fertilization yet.

<u>Two plant species flowering at different times will ensure that there is no cross pollination between the two species. Without pollination, there cannot be a zygote formation.</u>

Hence, the correct option is a.

7 0
3 years ago
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Which change of state occurs at 0 °C when heat energy has been added to ice?
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I think the answer is B

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