Digestion takes place in the esophagus, while digestion takes place in the mouth. (1 point)

a. chemical; mechanical
b. mechanical; mechanical
c. chemical; mechanical and chemical
d. mechanical; mechanical and chemical

, .

Name the organs of humanelemintary canal.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe