The diagram below shows a food web for a certain ecosystem. Which of the following best describes what may happen if pollution caused the fish population to decrease? A. The brine shrimp population may decrease

B. The mouse population may increase

C. The heron population may decrease

D. The crab population may increase

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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

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?