Cell theory applies to... A. only cells that have cell walls.
B. all cells.
C. only to prokaryotic cells.

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm