Trees of the same species have leaves of different size, shape, and color. Which statement best explains these differences? The genotype that controls these features is isolated to a single phenotype.

Flexibility in gene expression leads to differences between tree leaves.

Tree leaves vary in color, shape, and size because of the minerals in soil.

step 1: replication fork formation.

step 2: primer binding.

step 3: elongation.

step 4: termination.

explanation:

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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.