Which of these statements is true?
a. to lose weight, you must consume fewer calories than energy expended.
b. it is considered safe to lose 10 pounds a week.
c. you must exercise at least one hour a day to lose weight.
d. cycling and swimming are examples of resistance training.

Lupe is a carrier for color blindness. her husband clifford is colorblind. if lupe and clifford have four children, what's the probability of a boy being colorblind?

Which of the following do all living things have in common

The genetic code is essentially the same for all organisms. based on this information, one can logically assume which of the following statements to be correct? a. dna was the first genetic material. b. the same codons in different organisms translate into the different amino acids. c. different organisms have different numbers of different types of amino acids. d. a gene from an organism can theoretically be expressed by any other organism. e. all organisms have experienced convergent evolution.