During inhalation, the diaphragm moves _____ and the intercostal muscles move the rib cage _____
a. downward; outward
b. outward; downward
c. outward; outward
d. downward; downward
e. outward; upward
ANSWER: a
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Programmed cell death is known as ____.
A. autophagy B. mitosis C. apoptosis D. meiosis E. cell genesis
A plasmid is extrachromosomal, circular DNA with an origin of replication (allows replication) and often contains genes for antibiotic resistance, metabolism of unusual molecules (e.g., Pseudomonas) or virulence.
a. true b. false
Response of a quantitative character to selection will be greatest when heritability is and selection is
A. 0.40; 4 B. 0.75; 4 C. 0.60; 4 D. 0.75; 2.5 E. 0.40; 2.5
You dissect a specimen of a vertebrate during an anatomy laboratory. It has the following characteristics: lungs, abundant blood capillaries under thin skin, a partially divided heart, a pulmonary circuit, and four walking legs. What is this animal?
A. placental mammal B. amphibian C. marsupial mammal D. lungfish E. reptile