Which of the following statements regarding fern alternation of generations is not correct?
A. Ferns have a dominant, diploid
sporophyte.
B. The fern gametophyte is very small, but
very hardy.
C. Most fern gametophytes are capable of
producing both male and female gametes.
D. Chemical signals released by
gametophytes producing eggs cause other,
nearby gametophytes to also produce eggs.
E. The diploid zygote will grow to become the
sporophyte.
D
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The important solvent associated with living things is ________.
A. sodium chloride B. benzene C. water D. ethyl alcohol E. carbon dioxide
The intrauterine device is a cuplike rubber device that blocks the cervix in females
Indicate whether the statement is true or false.
If life exists on Mars, it is predicted that organisms would live underground and be anaerobic. Why?
What will be an ideal response?
During an experiment assessing the development of a fly embryo, a scientist artificially turns on a homeotic gene that controls eye development in somatic cells that normally develop into the wings. Which of the following is the most likely outcome of this experiment?
A) A normal adult fly will develop. B) A mutant adult fly will develop that has eyes on its wings. C) A mutant adult fly will develop that has legs on its head. D) A mutant adult fly will develop that has no eyes on its head but has eyes on its wings.