A. Lizards often lie in the sun in the mourning. Why? B. Basking sharks swim close to the surface of the water and appear to be sunning themselves like lizards. In fact, however, they are feeding on plankton. Why might a land-dwelling creature like a lizard need to sun itself, […]

“Evolution” Note: Online students, please respond to one of the following three bulleted items. • Using the internet and Strayer databases choose three recent advances in genetics, development, and geology and explain two ways your chosen advances have enriched our understanding of evolution. Next suggest two ways that new sources […]

In dogs there are three autosomal, independently assorting allelic pairs with the following genotype-phenotype relationships: B,b Codominance; BB = black, Bb = spotted (black & tan), bb = tanG,g G (grey eyes) completely dominant to g (yellow eyes)L,l Incomplete dominance; LL = normal liver, Ll = diseased liver, ll = […]

Freediving is an activity in which a person dives, sometimes to great depth, without the use of scuba gear. The diver must hold his or her breath for the duration of the dive. (The record depth, with no equipment such as diving fins, is 101 m; the official record time […]