Which of the following is/are likely to result in more carbon dioxide being available? 1. an increase in the number of humans
III. an increase in transpiration
II. a decrease in the number of plants
IV. an increase in the burning of fossil fuels
(a) ll only
(b) I and 11
(c) II and IV
(d) I. II, and IV

What is the next step in muscle contraction after the actin changes shape? (apex)

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.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?