11. which of the following accurately describes carbon atoms? a. carbon atoms only have three electrons available for bonding. b. carbon atoms can bond to other carbon atoms. c. when carbon atoms bond to other carbon atoms, they can only form triple bonds. d. carbon atoms are only found in two of the four main macromolecules.

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

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

Pulmonary arteries carry highly oxygenated blood. true or false?