The part of the brain that connects the cerebellum to higher integrating centers of the forebrain is the
a. cerebrum.
b. pons.
c. cerebellum.
d. fissure of Rolando.
e. hypothalamus.
B
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You purchase two identical houseplants and place them side by side on your windowsill. You water both plants equally. One plant, plant a, you leave alone
On the other plant, plant b, you pinch off the top of the growing stem, effectively removing the apical meristem. Which of the following would you expect to occur? (Select all answer options that apply.) A. Both plants will look exactly the same except that plant b will be shorter. B. Plant a will be much bushier, with growth of many lateral branches. C. Plant b will have larger leaves to make up for the loss in photosynthetic tissues from reduced growth. D. Plant b will be much bushier, with growth of many lateral branches. E. The level of auxin in plant b will be higher than in plant a. F. The level of cytokines will be higher in axillary buds of plant b. G. The level of cytokines will be the same in both plants, but these cytokines only have an effect on growth in plant b.
Gregor Mendel: Check all that apply.
_____ carried out his experiments in an abbey garden. _____ was a monk. _____ conducted research that proved that the "blending hypothesis" was the correct explanation of how heredity worked. _____ carried out his experiments on heredity by doing thousands of genetic crosses on a common garden plant. _____ discovered the basic principles of hereditary.
Which scenario illustrates a selfish herd?
a. In most wolf packs, one dominant male breeds with one dominant female. b. Lions are social animals who cooperate in catching prey. c. When threatened by wolves, musk oxen stand back to back, presenting an imposing display of sharp horns. d. Chimpanzees learn by imitation in a group. e. A pair of breeding herring gulls will cannibalize the eggs and even the chicks of their neighbors.
_______ causes rhythmic contractions of cells in the mammary glands.
Fill in the blank(s) with the appropriate word(s).