Which of the following characteristics applies to biomes?
a. usually confined to a relatively small geographical area
b. encompass interacting landscapes
c. level of ecological organization preceding (lower than) ecosystem
d. boundaries extend beyond climate barriers
e. regions with similar climate, but different plants, animals, and soil
B
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Hemoglobin
a. tends to give up oxygen in regions where partial pressure of oxygen exceeds that in the lungs. b. tends to hold onto oxygen when the pH of the blood drops. c. tends to release oxygen where the temperature is lower. d. releases oxygen more readily in highly active tissues. e. may bind up to 16 molecules of oxygen.
Unlike the one-way movement of an individual in emigration and immigration, migration refers to round-trip movements
Indicate whether the statement is true or false
What type of mutation occurred in the following? Normal allele GGAAUGAAACAGGAACCC Mutant allele GGAAUGAAACAGGUACCC
A. substitution B. insertion C. deletion D. frameshift
The length of time that Darwin's round-the-world voyage took was about ________
Fill in the blank(s) with correct word