Living members of the lineage ____ include the sharks, skates, and rays. They all have skeletons made
entirely of cartilage.
a. Petromyzontoidea
b. Chondrichthyes
c. Actinopterygii
d. Myxinoidea
e. Sarcopterygii
B
Biology & Microbiology
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Beta amyloid plaques are most often seen in persons suffering from ____
a. Parkinson's disease b. Alzheimer's disease c. heart disease d. muscular dystrophy e. multiple sclerosis
Biology & Microbiology
Bats, pterosaurs, and birds are examples of ________ evolution.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
If a hybrid organism has a shorter lifespan, which situation may result?
a. allopatric speciation b. hybrid zones c. parapatric speciation d. species clusters e. sympatric speciation
Biology & Microbiology
Which of the following doesn't involve molecules moving across cell membranes?
a) diffusion b) osmosis c) facilitated diffusion d) active transport e) induced fit
Biology & Microbiology