Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?
a. Scavenging
b. True tissues
c. Hard parts
d. Bilateral symmetry
e. Filter-feeding
Answer: c. Hard parts
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Dark-colored solid surfaces
(a) have a heating effect on their surroundings. (b) have a cooling effect on their surroundings. (c) release carbon dioxide. (d) increase evapotranspiration.
Which of the following is NOT a cell covering or part of a cell covering?
a. glycocalyx b. extracellular matrix c. cristae d. cell wall e. integrins
Short, noncoding, guanine-rich DNA sequences found at the ends of chromosomes are called telomeres
__________________ Indicate whether the statement is true or false.
The function of endosperm is to
A. provide nutrients to the embryo. B. form the seedling. C. provide water to the embryo. D. provide a protective coating for the embryo. E. develop into the fruit.