Which statement is true of all protists?
a. They exhibit true multicellularity.
b. They are encased in silica-based shells.
c. They contain complex organelles and nuclei.
d. They live in large colonies of identical protists.
c. They contain complex organelles and nuclei.
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Heavy metals may inactivate proteins by reacting with their sulfhydryl groups.
Answer the following statement true (T) or false (F)
____ conduct(s) electrical signals away from the cell body of a neuron
a. An axon terminal b. An axon c. An axon hillock d. The nucleus e. Dendrites
Four of the five answers listed below are
related. Select the EXCEPTION.
a. lancelet b. jawed fish c. jawless fish d. tunicate e. octopus
Short-term and long-term memory are related but have important differences. Short-term memory _____
A) involves temporary links formed in the cerebral cortex while long-term memory involves permanent connections within the hippocampus B) and long-term memory store information in the cerebellum but use different neurotransmitters C) is essential for acquiring and retaining long-term memories D) is essential for acquiring new long-term memories but not for maintaining them