Which explains how an endangered species and extinct species differ?
a. an endangered species is one that no longer exists, while an extinct species is at risk of dying out.
b. an endangered species has a decreasing population, but an organism that lives is considered extinct.
c. an endangered species is one that is at risk of dying out, while an extinct species is one that no longer exists.
d. an endangered species has an increasing population, but an organism that no longer exists is extinct. idk what subject to put this in but can someone and fast

Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.

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.

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?