What is one way that scientists use imagination to guide their creativity when they conduct research?
a. they write preliminary lab reports with imagined data and results.
b. they sketch equipment setups before performing experiments.
c. they create computer programs to manage experimental data.
d. they visualize possible solutions before they design experiments.

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?