What two factors affected the development of new species

What is the difference between elements in a human and other living things?

The mitochondria does?

What is the essence of the catalase test?

A farmer is raising rabbits. The average body weight in his population is 3kg. The farmer selects the 10 largest rabbits in the population, whose average body weight is 4kg, and interbreeds them.

Which of the following statements about deuterostomes is false? View Available Hint (s) Which of the following statements about deuterostomes is false? All deuterostomes exhibit radial symmetry in their bodies.

Each of the following statements concerning hair is true except A. scalp hairs grow constantly throughout life. B. the cortex of the hair is composed of hard keratin. C. the medulla is the soft core of the hair. D.

Some neural tissues retain stem cells and thus the capacity to divide and replace lost neurons. Which of these special senses can replace its damaged neural receptors? a) proprioception b) vision c) olfaction d) hearing e) equilibrium.

Management science replaces common sense with scientific analysis. a. True b. False

What events caused the formation of most islands in the South Pacific?

How do plants depend on bacteria?