__________ are small gaps across a leaf’s epidermis
that help regulate water and gas levels in the plant.
a. Palisade cells
b. Mesophyll
c. Roots
d. Stomata
e. All of these
Answer: d
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cephalization refers to the trend for animals with more complex body types to
A. concentrate nervous tissue in the anterior (head) end of the animal. B. become bilaterally symmetrical. C. develop a brain with clear divisions between "gray" and "white" matter. D. develop a segmental organization to the nervous system. E. concentrate sensory organs in the anterior end of the animal.
Four of the five answers listed below are chromosomal abnormalities. Select the exception
a. translocation b. elongation c. duplication d. deletion e. inversion
Molecular chaperones
A) help guide proteins from the nucleus to the cytoplasm. B) help guide proteins from the cytoplasm to the endoplasmic reticulum. C) help fold proteins properly. D) are proteins with structural function. E) are proteins with enzymatic function.
The neural crest cells of vertebrates develop into nerves, head muscles, cranium, and jaws
____________________ Indicate whether the statement is true or false.