Abiology student looks at an unidentified cell under the microscope. the student identifies a nucleus, several oblong organelles, a cell membrane, & a cell wall, which of the following types of cell could this be? a: red blood cell b: oakleaf sell c: a skin cell or d: liver cell

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What is the period of cell life when it is conducting

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.