If an agent is transferred from an infected person to another person without an intermediate object, substance or space, it is said to be _____ transmission.
Fill in the blank(s) with the appropriate word(s).
direct
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The first modern practitioner of taxonomy was ____
a. Ernst Mayr b. Jean Baptiste de Lamarck c. Alfred Russel Wallace d. Charles Darwin e. Carolus Linnaeus
Which cells are least likely to proceed into G1?
a. most skin cells b. most liver cells c. most intestinal cells d. most red blood cells e. most nerve cells
An egg with 22 chromosomes that is fertilized by a normal sperm will result in
a. a zygote with trisomy. b. a zygote with disomy. c. a zygote with monosomy. d. a zygote with normal chromosome number.
Light serves two important functions for life on Earth. What is light's one source that sustains life, and what information does it provide organisms with?
a. energy; information about chemical life b. chemicals; information about physical life c. chemicals; information about surrounding life d. energy; information about physical life