Changes in dna are known as mutations and can be sometimes produce beneficial changes in population. a mutant form of the normally light-colored peppered moth is dark-colored. the dark-colored moth blends in with soot-covered trees in heavily polluted areas. why would the dark-colored mutation be beneficial in a polluted area?

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.