A common test of muscular endurance is the 1 mile walk test.
a. true
b. false
b. false
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An example of a pathogen that undergoes rapid changes resulting in antigenic variation is _____
A) the influenza virus, which expresses alternative envelope proteins B) the strep bacteria, which can be transmitted from patient to patient with high efficiency C) human papilloma virus, which can remain latent for several years D) the causative agent of the autoimmune disease known as rheumatoid arthritis E) multiple sclerosis, which attacks the myelinated cells of the nervous system
Lyell’s theory of uniformity proposed that ____
a. Earth was shaped by gradual, repetitive change b. catastrophic geological events caused extinctions c. geologic events that occurred to shape Earth no longer occur d. all populations produce more offspring than their environment can support e. natural selection drives evolutionary change
Suppose you are a botanist and you discover a plant that has xylem and phloem. Into which group should you NOT classify this plant?
a. ferns b. angiosperms c. gymnosperms d. bryophytes
Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.
Answer the following statement true (T) or false (F)