Which answer correctly summarizes the essential elements of a scientific theory? A. eventually become laws; based on many tests and reviews; usually don't change
B. predict and describe;based on observation and logic; formulated before experimentation
C. never become laws; based on strong scientific support; many changes based on evidence
D. describe the natural world; based on many observations and data; do not explain why

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

5points what is term for the process of gathering information through images taken at a distance? o a. global positioning o b. topography o c. remote sensing o d. cartography submit

Consider the activity and specificity of the three enzymes. pepsin is most active in the human and to digest