All of the following are either structures or characteristics of members of the Class Bivalvia of the Phylum Mollusca except
A. the mantle.
B. a radula.
C. a shell.
D. gills.
E. open circulation.
B. a radula.
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The most fundamental and important molecule that distinguishes living systems from nonliving matter is ____
a. protein b. DNA c. fructose d. water e. glucose
Differentiate between endotoxins and exoenzymes
What will be an ideal response?
Which of the following statements is NOT
correct about autosomes?
a. Autosomes are chromosomes that are found in both males and females. b. In a human cell, all chromosomes are autosomes, except chromosomes "X" and "Y." c. In birds, moths, and butterflies, autosomes determine the sex of the individual. d. A characteristic carried by autosomes would be passed to offspring males and females. e. More than one of these statements is incorrect.
Short, noncoding, guanine-rich DNA sequences found at the ends of chromosomes are called telomeres
__________________ Indicate whether the statement is true or false.