Which of these animals uses positive-pressure breathing?

A. Reptiles
B. Birds
C. Mammals
D. Amphibians


Answer: D

Biology & Microbiology

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Staining methods are suitable for obtaining ________ information about the number of cells in natural samples

A) qualitative B) quantitative C) both qualitative and quantitative D) neither qualitative nor quantitative

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The cervix is part of the:

a. vulva b. ovary c. uterus d. oviduct e. vagina

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Four of the five substances listed below are related

by a common chemical similarity. Select the exception. a. amylose b. maltose c. sucrose d. lactose e. all these are disaccharides

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Which of the following is not a type of cutaneous receptor?

A. Golgi tendon organs B. Merkel disks C. Krause end bulbs D. Pacinian corpuscles E. Meissner corpuscles

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