The oxygen (O2) produced by photosynthesis comes from carbon dioxide (CO2).
a. true
b. false
Ans: b. false
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Predators of Daphnia emit chemicals into the water that cause Daphnia to ________
a. develop pointed heads b. spend more time in hiding c. produce toxins d. reproduce at an earlier stage of development
The ciliary muscle
a. controls the eardrum. b. controls the shape of the lens to allow focusing. c. holds the bones of the middle ear in place. d. enables the eyeball to move so that a person may see an object without moving the head. e. is responsible for the size of the pupil in different light intensities.
Endoskeletons are shed in the process of ecdysis
____________________ Indicate whether the statement is true or false.
A ________ is a single unit of the membranous sacs that make up the thylakoid.
Fill in the blank(s) with the appropriate word(s).