Which of these describes one of the functions of the nervous system?
O A.
removing waste materials from the body
OB. sensing changes in the external environment
c. transporting nutrients throughout the body
D. providing the cells of the body with energy

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?