When a pond becomes covered with algae growth, oxygen levels drop as the algae decays. This process is called A. respiration
B. deoxygenation
C. eutrophication D. photosynthesis

Number and variety of living organisms includes genetic, species, and ecological types

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

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.