Which group includes the lineages Anura, Urodela, and Gymnophiona?
a. Squamata
b. Testudines
c. Archosauromorpha
d. Amphibia
Ans: d. Amphibia
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Abiotic oxidation of Fe2+ requires oxygen; no other chemicals can directly oxidize Fe2+
Indicate whether the statement is true or false.
The sex of most mammals, birds, and insects is determined by:
a. the temperature. b. the external environment. c. sex chromosomes. d. chance. e. the internal envronment.
List the two adaptations plants have evolved to enhance their survival on land.
What will be an ideal response?
Indicate which of the following are functions of mitosis. (Select all that apply)
a. It repairs damaged tissues. b. It replaces the cells that die with new ones. c. It allows growth of all tissues and organs after birth. d. It produces gametes like eggs or sperm cells. e. It allows development of an individual, composed of some 40 trillion cells, from a one-celled fertilized egg.