Georges Cuvier, a pioneer in paleontology, observed the presence or absence of species 1. in the fossil record.

2. and concluded that evolution was responsible.

3. in sedimentary strata of different ages.

4. A and C only.

5. A, B and C.

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

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?

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4