Systemic acquired resistance is
A. a broad-ranging resistance that lasts for a period of days.
B. the same as the human immune response.
C. a response whereby antibodies recognize specific antigens.
D. a response that occurs when the hypersensitive response fails.
E. a method for plants to modify their DNA for protection.
A. a broad-ranging resistance that lasts for a period of days.
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The most important factor in the control of breathing is the amount of oxygen in the blood
A. true B. false
What adaptation(s) allow(s) a rattlesnake to more effectively locate prey?
a. acute sense of hearing b. heat sensors c. acute sense of smell d. acute sense of vision e. acute sense of smell and vision
The mechanism of evolution proposed by Charles Darwin in The Origin of Species is
A) acclimatization. B) natural selection. C) acquired inheritance. D) adaptation.
Which of the following domains only contain one kingdom?
A. Fungi and Protista B. Bacteria and Fungi C. Animalia and Plantae D. Archaea and Bacteria E. Protista and Animalia