Which of the following is paired INCORRECTLY?
A) plants; cellulose cell wall
B) algae; glycocalyx
C) bacteria; peptidoglycan cell wall
D) fungi; polysaccharide cell wall
E) archaea; protein cell wall
B
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Mitochondria most resemble _____
a. archaeans b. aerobic bacteria c. cyanobacteria d. early eukaryotes
Two human activities, burning fossil fuels and ________, are important causes of the increase in atmospheric carbon dioxide
Fill in the blank(s) with correct word
It is inappropriate to prescribe antibacterial agents to treat colds or flu because
A) the microbes involved can develop resistance rapidly. B) these diseases are transmitted by endospores, which are difficult to kill. C) these diseases exhibit cross resistance. D) these diseases are caused by viruses. E) these diseases can act synergistically with each other.
A human skin cell contains 46 chromosomes (23 paternally inherited and 23 maternally inherited). Before mitosis begins, this cell must duplicate its genetic material. What are the products of this duplication?
A) 92 chromosomes, each consisting of 2 homologous chromatids connected by a centromere B) 23 chromosomes, each consisting of a maternal and a paternal chromatid connected by a centromere C) 92 chromatids, each consisting of 2 sister chromosomes connected by a kinetochore D) 92 sister chromatids, in 46 pairs that are connected by a centromere E) 46 chromosomes, each consisting of 2 sister chromatids connected by a kinetochore