Describe why many vent animals that house chemosynthetic bacteria are not harmed by the sulfide compounds in their blood, which normally would be toxic to these animals
What will be an ideal response?
Many of these animals contain sulfide-binding proteins that scavenge any free sulfide. This prevents free sulfides from interacting with other cell biomolecules and causing damage.
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The gametophyte generation of plants begins ____, where meiosis produces ____
a. after fertilization; a multicellular, diploid organism b. after fertilization; a multicellular; haploid organism c. in the sporangia; a multicellular; diploid organism d. in the sporangia; haploid spores e. in the sporangia; diploid spores
An alternative form of a single gene is known as
A) a parental. B) a dihybrid. C) a reciprocal. D) an allele. E) a recessive.
The incidence of tuberculosis in the year 2000 in the United States was 12.43/100,000 cases. This means
A) 12.43 of every 100,000 people in the United States had tuberculosis in the year 2000. B) 12.43 of every 100,000 people died of tuberculosis in the United States in the year 2000. C) there were 12.43 new cases of tuberculosis for every 100,000 people in the United States in the year 2000. D) there were 12.43 tubercle bacilli per 100,000 microbes in the United States in the year 2000. E) 12.43 of every 100,000 cases of tuberculosis were treated in the United States in the year 2000.
Please select each of the common reservoirs of rabies listed below.
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