The closest relatives of the familiar pine and spruce trees are _____

A) ferns, horsetails, lycophytes, and club mosses
B) hornworts, liverworts, and mosses
C) gnetophytes, cycads, and ginkgos
D) elms, maples, and aspens


C

Biology & Microbiology

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Bacteria that are able to grow in humans and cause disease have likely evolved to be

A) psychrophiles. B) mesophiles. C) thermophiles. D) hyperthermophiles.

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Vampire squid are actually octopuses

Indicate whether the statement is true or false

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Cystic fibrosis is caused by a recessive loss-of-function mutation that encodes a protein called the ________

A) cystic fibrosis transmembrane ion channel B) chloride ion transmembrane conductance regulator C) cystic fibrosis transmembrane conductance regulator D) cystic fibrosis ion channel regulator

Biology & Microbiology

You have identified a new mammal species. You are surprised to find that it has a pelvis, but there is no evidence the

species has legs. What can you conclude about this animal’s structure? a. The animal is very young. b. The pelvis is a vestigial structure. c. The animal is a mutant species. d. The pelvic bones are present because the animal is a mammal. e. The pelvic bones are analogous to the pelvic bones found in other mammals.

Biology & Microbiology