Which of the following is considered a new emerging infectious disease?
A. Polio
B. Malaria
C. Cholera
D. SARS
E. Smallpox
Answer: D. SARS
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The sliding filament model of muscle contraction depends on the dynamic interactions between myostatin and
myoglobin proteins.
Indicate whether the statement is true or false.Superweeds result from
A. cross-pollination of cultivated and non-cultivated plants in the field. B. cross-pollination of cultivated and non-cultivated plants in the laboratory. C. cross-pollination of two cultivated plants in the field. D. cross-pollination of two cultivated plants in the lab. E. cross-pollination of two non-cultivated plants in the field.
HeLa cells were critical in _____
a. developing the polio vaccine b. developing a cure for malaria c. understanding fertilization d. developing a cervical cancer vaccine e. understanding cloning
The first known hominin species to leave Africa was ____
a. Homo sapiens b. Homo erectus c. Homo habilis d. Australopithecus afarensis e. Homo neanderthalensis