Students use a microscope to look for structures present in four different cells. the students placed an x for each structure that was viewed for each cell on the table shown.

which cell that was viewed is most likely a prokaryote?

a. cell w
b. cell x
c. cell y
d. cell z

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?