Given a population that contains genetic variation, what is the correct sequence of the following events, under the influence of natural selection?

1. Well-adapted individuals leave more offspring than do poorly adapted individuals.

2. A change occurs in the environment.

3. Genetic frequencies within the population change.

4. Poorly adapted individuals have decreased survivorship.

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#Question id: 28214

#Unit 5. Developmental Biology

Specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observation is correct at the slightly lower concentration of activin?

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#Question id: 10614

#Unit 10. Ecological Principles

K selected species in forest is characterized by 

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#Question id: 29488

#Unit 6. System Physiology – Plant

iPRTP or iPRDP is converted to ZTP or ZDP respectively by

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#Question id: 26970

#Unit 10. Ecological Principles

There are some given Density independent factors, except?

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#Question id: 16322

#Unit 7. System Physiology – Animal

Immediately after putting on a shirt, your skin might feel itchy. However, this perception soon fades due to ________.