Which animals serve as intermediate hosts for human schistosomes?
A) Humans
B) Mosquitoes
C) Fish
D) Snails
E) Reduviid bugs
D) Snails
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A species has n=4 chromosomes. Genes on the same chromosome have a minimum recombination recombination rate of:
a. 100% b. 75% c. 50% d. 25% e. 0%
Mammals are united by what features?
A. Hair B. Placenta C. Producing milk for their young D. Both A and C E. All of the above
B cells and T cells cannot design and build antibodies or T-cell receptors to fit specific invading antigens
Indicate whether the statement is true or false
The main difference between the life cycle of mosses versus flowering plants is
A. flowering plants undergo the alternation of generations and mosses do not. B. in moss the dominant life cycle stage is the gametophyte, whereas in flowering plants the dominant life cycle stage is the sporophyte. C. mosses only have one multicellular life cycle stage, whereas flowering plants have two. D. moss sporophytes are photosynthetic and flowering plant sporophytes are not.