Describe alternation of generations. Include in your discussion the following terms: gametophyte, sporophyte, diploid,
haploid, dominant form, meiosis, and fertilization. What will be an ideal response?
Concepts to Consider: Plants alternate between a haploid gametophyte and a diploid
sporophyte. The dominant form varies; the gametophyte is dominant in the mosses, and the
sporophyte is dominant in the ferns, gymnosperms, and angiosperms
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Ecologists are concerned about amphibian populations because
A. their loss would be an aesthetic loss to the planet. B. of the possibility of numerous medicinal uses. C. they are keystone species in many areas—their loss will cause other populations to crash. D. amphibians are very sensitive to environmental change—they may be indicating serious problems. E. they are increasing to the point of competing with indigenous species.
If you were exposed to a sick animal that was found to have negri bodies in its nervous system in a postmortem examination, how would you be treated to prevent disease?
A) passive and active immunization against rabies B) antibiotics to treat Lyme disease C) antiviral medication D) observation to detect tick or lice bites
The algal ancestors of land plants are most likely similar to the
a. Rhodophyta. b. Phaeophyta. c. Chrysophyta. d. Charophyta. e. Radiolaria.
It is just a myth that eating carrots will improve your night vision.
Answer the following statement true (T) or false (F)