Which describes prokaryotic chromosomes?
(select all that apply.)

a)are circular in shape

b)have telomeres

c)are found in the cytoplasm

d)contain histone proteins

What is the following best defines climate?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Why are common names a problem for scientist?