In mammals, gestation is defined physiologically as the time from _____ to birth.
A. fertilization
B. implantation
C. blastocyst formation
D. ovulation
E. the first missed menstruation
B. implantation
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Primary function of the ________ convoluted tubule of the nephron is ion exchange
Fill in the blank(s) with correct word
Swimming organisms in the ocean that are able to move at will in the water column are referred to as nekton
Indicate whether the statement is true or false
If a cell wall is analogous to the plant cell, which of the following is analogous to the animal cell?
a. the cytoskeleton b. the capsule c. the plasma membrane d. the extracellular matrix
Polygynous species:
a. are usually sexually monomorphic. b. are usually sexually dimorphic, with males larger and more highly ornamented. c. are more commonly found in birds than in mammals. d. usually employ external fertilization. e. are usually sexually dimorphic, with females larger and more highly ornamented.