Identify which type of natural selection is described in each case below.
results in the evolution of the species:
results in new species:
favors traits at the two extremes:
no increase in diversity:
one extreme trait is favored:
diversity decreases:
diversity increases:

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.

Which locations on the map are low-pressure areas? a b c d e