The secretion of tears, milk, saliva, and earwax
is a function of what tissue?
a. epithelial
b. loose connective
c. lymphoid
d. nervous
e. adipose
A
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If a cell contains 84 sister chromatids at metaphase of mitosis, how many chromosomes will be present in each
nucleus in late telophase?
a. 168 b. 84 c. 42 d. 21 e. cannot be determined from the information given
Which type of substrate is most likely to contain fossils? a. All of these choices
b. Shale c. Sedimentary rock d. Sandstone e. Mudstone
What topics are the basis of the U.S. Endangered Species Act that mandates decisions about the management of endangered species?
A) political concerns only B) economic concerns only C) biological concerns only D) political, economic, and biological concerns
A monophyletic group_________
A. consists of an ancestor and some of its descendants. B. is characterized by one or more homoplasies. C. consists of an ancestor and all of its descendants.