Which is the best way to increase the validity of data in an experiment

Which statement describes DNA?

Which of the following are examples of insects which have chewing mouthparts? A. Mosquitoes and whiteflies B. Horses and blowflies C. Beatles and Catapillars D. Butterflies and Moths

Suppose you inoculate three flasks of minimal salts broth with E. coli. Flask A contains glucose. Flask B contains glucose and lactose. Flask C contains lactose.

Which step in the scientific method is next after conducting an experiment

To survive, rockweed algae have adapted to form thick mats in coastal areas. Which statement best describes why the algae have most likely evolved the ability to form mats? The mats increase access to dissolved oxygen.

Name classification of matter used in 1800

A key difference between hormonal regulation of the reproductive systems of males and females is that:

Which is the best evidence of an evolutionary relationship between two organisms?

Mt. Aconcagu is the highest peak of which range

Members of Porifera are diploblastic. Which statement clarifies this? A. They are unsegmented. B. They have a true body cavity. C. They have two germ layers.