Which statement describes evolution? * a. Progression toward better, stronger, smarter species
b. Change in allele frequency in a population
c. Harmful mutations are removed from a population.
d. is possible in individuals if given a million years

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

The solution inside a plant cell is approximately a 1% saline solution and a 21% nacl solution the ,cytoplasm of a plant cell will