Aphylogenetic tree that is "rooted" is one ) that extends back to the origin of life on earth(b) at whose base is located the common ancestor of all taxa depicted on that tree(c) that illustrates the rampant gene swapping that occurred early in life's history(d) that indicates our uncertainty about the evolutionary relationships of the taxa depicted on the tree(e) with very few branch points

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.

Light sensitivity in euglena is provided by the

Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan and tom. bob has decided that susan's meals should contain at least 320 mg of calcium, 17 mg of iron, and 42 mg of vitamin c, whereas tom's meals should contain at least 280 mg of calcium, 13 mg of iron, and 34 mg of vitamin c. bob has also decided that the meals are to be prepared from three basic food