Gymnosperms are characterized by producing "naked seeds." Which of the following groups is NOT classified as a gymnosperm?
A. ginkgoes
B. horsetails
C. cycads
D. conifers
E. gnetophytes
Answer: B
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Which structure produces a sugar- and protein-rich fluid that provides energy for sperm motility?
A. epididymis B. seminal vesicle C. testis D. vas deferens E. prostate gland
Which of the following is a producer?
A) oak tree B) earthworm C) sun D) cat
When genetically based traits are inherited independently from each other, this is known as:
a) Law of Segregation. b) Mendel's law of independent assortment. c) linkage. d) multi-allelism. e) pleitropy.
How is an immunofiltration assay different from an ELISA?
A) Test antigens are bound to filters rather than plastic plates. B) Positive results are the result of precipitate formation. C) Fluorescent molecules are attached to antigen rather than enzyme. D) Antibodies are bound to filters rather than plastic plates. E) They take longer than ELISAs.