Autosomal monosomy is not seen in live births because:a
its effects are so small as to be overlooked.
b. its effects do not set in until adulthood.
c. its effects are so lethal as to cause spontaneous abortion early in pregnancy.
d. it only occurs in sex chromosomes and therefore does affect nonreproductive function.
e. the births lead to the establishment of a clone of abnormal cells
c
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Coral reefs separated from land by a lagoon or deep water channel are called:
a. atolls. b. barrier reefs. c. table reefs. d. fringing reefs. e. patch reefs.
Which of these animals has the greatest proportion of long-looped nephrons in their kidneys?
A) A saltwater fish B) A freshwater fish C) A freshwater mammal, such as a beaver D) A human E) A desert mammal, such as a sand rat
What is the name given to organisms that can make their own food and thus sustain themselves without consuming organic molecules derived from other organisms?
A) chemotrophs B) heterotrophs C) autotrophs
Which of the following is an accidental parasite of humans?
A) Ascaris lumbricoides B) Acanthamoeba C) Balantidium coli D) Entamoeba histolytica E) Plasmodium