Which of the following plant groups is now extinct?

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#Question id: 32379

#Unit 2. Cellular Organization

Soluble myosin II can be cleaved by gentle treatment with the protease chymotrypsin to yield following fragments. Which fragments have the activity?

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#Question id: 34158

#Unit 7. System Physiology – Animal

Which of the following hormone induce Adrenal medullary PNMT?

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#Question id: 7151

#Unit 5. Developmental Biology

In developmental biology, what is meant by the concept of "growth"?

a) Growth occurs through increases in cell size.

b) Growth occurs through increases in cell number.

c) Growth can result from increases in the volume of extracellular matrix between cells.

d) Cell death is an important determinant of overall growth.

Which of the following is correct?

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#Question id: 18598

#Unit 11. Evolution and Behavior

First forest plants appeared in which geological period time scale?

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#Question id: 3334

#Unit 11. Evolution and Behavior

Red hair is a dominant trait in human. In a randomly mating population in Hardy-Weinberg equilibrium approximately 91% of individuals are red- haired. What is the frequency of the recessive allele?