Sediments that are composed of the remains of once living organisms are called:
a. cosmogenous.
b. hydrogenous.
c. inorganic..
d. biogenous.
e. terrigenous.
D
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True or false: Fetal movement can first be felt by the mother in the second trimester of development
A. true B. false
In female mammals, oogenesis
A. occurs in the uterus. B. requires the production of primary oocytes at puberty. C. is cyclical. D. requires progesterone. E. is a continuous process throughout adulthood.
Which genetic event is a source of new alleles within a population?
a. Mutation b. Crossing over during Meiosis I c. Independent assortment during Meiosis I d. Change in chromosomal number e. Fertilization
The cowbird chick with its foster parent exemplifies an example of ____
a. commensalism b. brood parasitism c. competition d. mutualism e. parasitoidism