What leads paleontologists to hypothesize that whales evolved from wolf-like carnivores?

A) molecular analysis of whale DNA
B) observations of fossil teeth
C) the presence of vestigial structures in both species
D) mathematical analysis using the Hardy-Weinberg formula


B

Biology & Microbiology

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The organism that has been most commonly associated with human disease, particularly in patients who are immunocompromised, such as those infected with human immunodeficiency virus (HIV), is:

a. Rhodococcus. b. Gordonia. c. Tsukamurella. d. Streptomyces.

Biology & Microbiology

The relationship between the clownfish and the sea anemone it is associated with is an example of mutualism

Indicate whether the statement is true or false

Biology & Microbiology

Which description fits the molecule in this diagram?



a. triacylglycerol
b. artificially hydrogenated trans fat
c. polyunsaturated fatty acid
d. amphipathic phospholipid

Biology & Microbiology

Which of these muscle components is the smallest?

A) Muscle fiber B) Myofibril C) Myosin filament D) Skeletal muscle

Biology & Microbiology