Which of these animals does NOT belong in class Arachnida?
a. spider
b. crayfish
c. tick
d. mite
e. scorpion
Ans: b. crayfish
Biology & Microbiology
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Most conifers are __________, meaning that they retain their leaves throughout the year
A. deciduous B. evergreen C. ephemeral D. dioecious E. monecious
Biology & Microbiology
Similar genes in two species suggest that the genes have been inherited from a _____________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Adaptive radiation is NOT accompanied by:
a. migration to an island. b. a mass extinction. c. a devastating event, such as a volcanic eruption. d. climatic change. e. sympatric speciation
Biology & Microbiology
Which of the following cell contain a nucleus?
a. bacteria b. prokaryotes c. eukaryotes
Biology & Microbiology