What is most likely the amount of energy available at a trophic level of tertiary consumers if the amount of energy available to secondary consumers in that food web is 200 kilocalories? 0 kilocalories
20 kilocalories
200 kilocalories
2,000 kilocalories

Describe how an electric generator works

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

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.