53 the plants in an ecosystem produce food
for most of the other organisras that live in
that ecosystem. the role of a plant in its
ecosystem is its
a habitat
b niche
c mutation
d trophic level

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.

What is the role of rna polymerase? it creates the dna strand its the dna strand. it transcribe the dna strand il translates the dna strand save and exit next sube mark this and retum

Identifies and describes 3-4 components of the endocrine system (10 points) transfers meaning from one subject (endocrine system) to another (scenario/example) (10 points)