Tissues are best characterized as ________ .
a. the smallest units of life
b. fundamental units of all substances, living or not
c. an organized array of cells that interact in a collective task
d. biological complexes made up of smaller units called molecules
e. structural units of interacting organs
c. an organized array of cells that interact in a collective task
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Synaptic integration means that
a. positive or excitatory stimuli produce an excitatory postsynaptic potential. b. the positive and negative ions neutralize each other. c. excitatory and inhibitory signals are summed in a receiving neuron. d. the adjacent neurons interact so that excitatory and inhibitory stimuli cancel each other out. e. all of these occur
Which molecule is a disaccharide?
A) Fructose B) Water C) Lactose D) Glucose
You go to the movies with a friend, and he refuses to share your popcorn. He says that he heard that movie theatre popcorn is triploid. What is the most likely explanation for this?
A. Popcorn is made from a different species of maize than regular corn. B. Most corn is genetically modified by large agricultural companies. C. All popcorn is triploid, because the starchy part of the kernel is triploid endosperm tissue. D. The buttery topping on movie theatre popcorn causes chromosomal abnormalities.
________ is a halogen used in gaseous and liquid form for large scale disinfection of drinking water and sewage.
Fill in the blank(s) with the appropriate word(s).