Which one of the following measures changes in heat?

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#Question id: 14857

#Unit 13. Methods in Biology

A man has 9 friends (4 men and 5 women). In how many ways can he invite them, if there have to be exactly 3 women in the invitees ?

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#Question id: 7705

#Unit 9. Diversity of Life Forms

 Based on this tree, which statement is correct?

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#Question id: 3403

#Unit 11. Evolution and Behavior

Balancing selection is a type of natural selection that balances two or more alleles in population allows maintaining genetic diversity. Which of the following allowed to this type of selection?

A- Heterozygote has the highest level of Fitness than normal homozygote

B- If rare phenotypes are favored over common phenotypes

C- Introduction of new allele in to a population by mutation and allowed to higher fitness in individuals

D- One homozygote has a highest level of fitness than heterozygote and another homozygote

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#Question id: 9184

#Unit 9. Diversity of Life Forms

Which aquatic biome listed here is one of the most productive on Earth, and why?

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#Question id: 28389

#Unit 5. Developmental Biology

The thinning and spreading of the animal cap cells over the vegetal hemisphere, powered by proliferation and radial intercalation during gastrulation of amphibian, this process is known as___