Which characteristics do scientists use to group species?

common name and popularity

age and date of discovery

health and reproductive success

ancestors and DNA

What happens to temperature and pressure as the depth within the Earth increases?

Suppose you observed 455 individual cockroaches in the infested apartment after 5 years of exposure to hydramethylnon + glucose bait.

The humans appendix and a whales pelvis are examples of ... a.) homologous structures b.) analogous structures c.) vestigial structures d.) fossil structures

Is a spider multicelullar

A 7-year-old child is wetting the bed at night. the bed-wetting apparently is beyond the child's control. the best diagnosis is:

Describe how the method could be developed to find the optimum pH for catalase activity

Which organ can be harmed if we eat too much fat?

A concerned male athlete brings a clear, red urine specimen to the physician's office. a. would you expect to see rbcs in the microscopic examination?

Rocks have been found in South America that are very similar in makeup and age to rocks in South Africa

In humans Select one: a. back muscles are strong to maintain erect posture. b. deep back muscles extend from the vertebrae to the ribs. c. most of the muscle mass in the lower back is from the spinalis muscle. d. back muscles are not very strong. e.