Of these statements best describes a theory?

a-it is a well supported description.
b-it is a well supported explanation.
c-it is not supported by data.
d-it is not supported by observations.

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.

How do disease caused by bacteria and disease caused by viruses react to antibiotics?