The outer portion of the "ground tissue" of a stem is referred to as its:

A) cortex. B) pith. C) mesophyll. D) sepal.


Answer: A

Biology & Microbiology

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What is an innate behavior that results in movement toward or away from a stimulus?

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Small molecules can move between capillaries and interstitial fluid by _____

a. passive transport b. active transport c. endocytosis d. diffusion e. exocytosis

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Which of the following is NOT true concerning umbilical arteries?

a. There are two of them. b. They carry oxygen-poor blood. c. They take blood from the fetus to the placenta. d. They are housed in the umbilical cord. e. They carry blood that is rich in nutrients.

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Polyploid organisms ________

A) are transgenic B) are created from ES cells C) are knockout organisms D) have different numbers of each chromosome E) have extra complete sets of chromosomes

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