1. Identify four regions of the electromagnetic spectrum that astronomers use when observing objects in space. 2. List the three main types of optical telescopes and describe their differences.

3. Explain the advantages of putting a telescope into orbit around Earth.

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?

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.

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line