Bats use high ultrasonic sounds to perceive their environment much like humans use radar. In animals,
this process of detecting objects is called
a. sound reflection navigation.
b. extra sensory perception.
c. echolocation.
d. ultralocation.
e. auditory navigation.
C
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Which of the following is true concerning the life cycle of a moss?
a. Gametophytes are nutritionally dependent upon sporophytes. b. Emerging gametophytes arise from germinated spores. c. The zygote is protected within specialized tissues of the sporophyte. d. Spores are produced within reproductive bodies called antheridia.
Are all nuclei the same size (diameter)?
a. Yes b. No
Which of the following functions best explains the reason for the asymmetrically oriented structure of
the proteins in the cell membrane? a. These proteins are manufactured by free ribosomes. b. Each type of protein has its own function. c. These proteins pass through the ER membrane into the ER lumen. d. Enzymes are needed to modify the carbohydrate chains on these proteins. e. These proteins are initially formed by ribosomes on the rough ER.
The maintenance of a high ATP to ADP ratio within cells ensures that the:a
hydrolysis of ADP to ATP will be strongly exergonic. b. hydrolysis of ATP to ADP will be strongly exergonic. c. hydrolysis of ATP to ADP will be strongly endergonic. d. hydrolysis of ADP to ATP will be an energy releasing reaction. e. conversion of ADP to ATP will proceed spontaneously.