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
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What is an innate behavior that results in movement toward or away from a stimulus?
a. reflex b. kinesis c. habituation d. taxis
Small molecules can move between capillaries and interstitial fluid by _____
a. passive transport b. active transport c. endocytosis d. diffusion e. exocytosis
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.
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