The house plant Kalanchoë daigremontiana produces ________ to reproduce asexually.
A. runners
B. suckers
C. rhizomes
D. adventitious plantlets
Answer: D
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The earthquake that devastated the population of Haiti in January 2010 could be described as a ____ factor, while water and food shortages that caused disease and death in the aftermath among quake survivors could be described as ____ factors
a. density dependent; density dependent b. density dependent; density independent c. density independent; density independent d. density independent; density dependent e. variable density; escalating
Fructose and glucose are both ____
a. six-carbon sugars b. disaccharides c. monosaccharides d. disaccharides and six-carbon sugars e. monosaccharides and six-carbon sugars
The luteinizing hormone
a. influences ovulation. b. has no function in males. c. is produced by the corpus luteum. d. stimulates milk production. e. promotes sperm formation.
Extinction of a species means that:
a. all members of the species have died out and have left no descendents. b. researchers are unable to find individuals of the species in nature. c. members of the species are not reproducing. d. the species has died out in part of its geographic range.