Marsupials, together with which one of the following groups, combine to make a monophyletic assemblage?

a. monotremes
b. reptiles
c. placental mammals
d. birds
e. amphibians


Ans: c. placental mammals

Biology & Microbiology

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A. it has more DNA repair genes than E. coli B. genes whose products are involved in cell wall metabolism and cellular transport are dramatically up-regulated after irradiation C. its genome consists of two circular chromosomes and two plasmids D. genes whose products are involved in DNA replication and recombination are dramatically up-regulated after irradiation

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The suborder Prosimii includes:a

tarsiers. b. lemurs, galagos, and lorises. c. monkeys. d. monkeys and apes. e. monkeys, apes, and humans

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In which of the following conditions do plants close their stomata?

A. Bright sunlight B. Water stress C. Low CO2 D. Lack of wind

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What is the outermost layer of the digestive tract called?

A.) Mucosa B.) Submucosa C.) Muscularis D.) Serosa

Biology & Microbiology