Question 1 of 10 Why are data tables used in a controlled experiment?
A. To list all of the materials needed for an experiment
B. To help a scientist look busy in case someone walks by
C. To help organize data and record information
D. To impress other scientists
SUBMIT

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food