Ischemia in the heart often leads to angina pectoris, which is ____
Fill in the blank(s) with the appropriate word(s).
pain in the chest and left arm
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Angiosperms possess many adaptations. Which of the following statements is not true of angiosperms relative to other groups of plants?
A. Angiosperms have xylem vessels. B. Angiosperms rely entirely on tracheid xylem. C. Angiosperms have much higher rates of CO2 uptake than other groups of plants. D. Angiosperms transformed the terrestrial environment due to their metabolic activities. E. Angiosperms can support greater rates of photosynthesis and transpiration than other groups of plants.
Which molecule comprises the largest proportion of the carbon reservoir in the ocean?
a. carbon dioxide b. carbonic acid c. bicarbonate ion d. carbonate ion
In a trait that shows continuous variation, what can we infer if the variance is low?
A) The majority of individuals will be far above the mean. B) The majority of individuals will be very close to the mean. C) The majority of individuals will be far below the mean. D) Relatively few individuals will be very close to the mean.
Genetically speaking, humans share roughly what percent of DNA sequences with gorillas?
a. 99% b. 98% c. 95% d. 90% e. 88%