An autotroph is likely to convert CO2 into reduced organic carbon in order to produce precursor metabolites.
Answer the following statement true (T) or false (F)
True
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Egg laying is a character unique to which groups of animals and their ancestors?
A. birds B. mammals C. reptiles D. All of the answer options are correct.
The dominant primary producers in tropical open ocean areas are:
a. large net phytoplankton. b. small nanoplankton. c. diatoms. d. algae. e. seaweeds.
In a large population of randomly breeding organisms, the frequency of a recessive allele is initially 0.3. There is no migration and no selection. Humans enter this ecosystem and selectively hunt individuals showing the dominant trait. When the gene frequency is reexamined at the end of the year, __________.
a. The frequency of the homozygous dominants will go down, the frequency of the heterozygous genotype will go down, and the frequency of the homozygous recessives will go up b. The frequency of the homozygous dominants will go down, the frequency of the heterozygous genotype will go up, and the frequency of the homozygous recessives will remain the same c. The frequency of the homozygous dominants will go down, the frequency of the heterozygous genotype will remain the same, and the frequency of the homozygous recessives will go up d. The frequency of the homozygous dominants will go up, the frequency of the heterozygous genotype will go down, and the frequency of the homozygous recessives will go down e. The frequency of the homozygous dominants will go up, the frequency of the heterozygous genotype will go down, and the frequency of the homozygous recessives will go up
Which of the following are true about plague?
A) There is a bubonic form, during which buboes develop. B) There is a pneumonic form, in which the sputum is highly contagious. C) There is a septicemic form called the Black Death. D) The disease can be controlled by controlling the rodent population. E) All of these choices are correct