2. The discovery of cells was made possible by the invention of microscopes. Today, several different types of microscopes are used by scientists. Which of the following best describes transmission electron microscopes?
A Transmission electron microscopes produce images of cell surfaces.
B Transmission electron microscopes produce three-dimensional images of cells.
C Transmission electron microscopes produce highly detailed images of cell structures.
D Transmission electron microscopes produce images of living cells.

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

If animal agriculture was eliminated, how much grain would become available for human consumption?

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.