1. What is fermentation? 2. How does a vaccine work?

3. What is metamorphosis?

4. How does Hydra reproduce?

5. What do you understand by puberty?

6. How does fertilization occur in frogs?

7. What are the differences between plant and animal cells?

8. Why is the pituitary gland referred to as the master gland?

9. Differentiate between unicellular and multicellular organisms.

List 4 main components of air in their molecular form

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper