Tracheids are part of _____
a. cortex c. phloem
b. mesophyll d. xylem
D
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Bacteria are notorious for adapting and changing very rapidly. So rapidly, in fact, that they rarely exist in pure culture conditions except in a laboratory. In a single bacterial community there can be dozens of species. Which field of genomics would be most useful for studying conditions such as these?
a. pharmacogenomics b. epigenomics c. metagenomics d. genomic medicine
The Dlx gene encodes a transcription factor
that signals clusters of embryonic cells to ____ and give rise to an appendage. a. fold into the cardiac muscle b. protrude from the body c. form reproductive structures d. induce apoptosis in cells lining the appendages e. develop into the immune system
A bacterium engulfed by a white blood cell through phagocytosis will be digested by enzymes contained in _____
A) lysosomes B) Golgi vesicles C) vacuoles D) secretory vesicles
Which of the following is a good example of two phenomena that are correlated but show no causal relationship?
A) Whenever the price of oil goes up, the price of airplane tickets goes up. B) Whenever I do poorly on a biology exam, I eat a quart of ice cream. C) I did poorly on my last biology exam, so I ate a quart of ice cream. D) Between 1937 and 1979, every year that a Democrat was elected President of the USA, a National League team won the World Series, whereas every year a Republican was elected President of the USA, an American League team won the World Series. E) When I walk to the bus, the trees I pass are a maple, an oak, an elm, a hickory, and another maple, in that order