Which of the following is(are) characteristic of
some amphibians?
a. gills
b. exchange of some gases occurs across their
skin.
c. lungs for oxygen uptake
d. skin for carbon dioxide removal
e. all of these
E
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The central column of conductive tissue in the root system is known as a(n) ________
a. vascular cylinder b. endodermis c. epidermis d. root cortex e. pericycle
Four of the five groups listed below have single-celled members. Select the exception
a. brown algae b. dinoflagellates c. green algae d. diatoms e. red algae
Mendel's monohybrid experiment results led to his law of __________. Fill in the blank(s) with the appropriate word(s)
Pavlov's well-known experiment of a dog salivating at the sound of a bell ring is an example of
A. operant conditioning. B. classical conditioning. C. insight learning. D. imprinting.