A child notices that during spring and summer, many frogs are easy to find in a garden, but as winter approaches, all of the frogs disappear. The child knous that frogs are cold blooded animals and cannot survive
extreme cold conditions
Which response will the frogs likely perform to survive winter?
•They will spend more time in the water.
•They will bury themselves in the mud
•The will add layers of blubber under the skin
•They will migrate to distant regions that are warmer.

Look at the photo of the leaf. which term best describes this leaf?

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 are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.