A biome with complex structure, warm weather, plentiful rainfall, and diverse species is a
A. tropical rain forest.
B. taiga.
C. tundra.
D. savanna.
Answer: A
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The evolution of genetically based, reciprocal adaptation in two or more interacting species is
described as coadaptation.
Indicate whether the statement is true or false.Which organelle breaks down organelles that are no longer useful?
A. ER B. Golgi C. Lysosome D. mitochondria
Select the TRUE statement.
a. During ventricular diastole, arterial pressure drops to zero. b. During ventricular systole, the semilunar valves remain closed. c. During atrial systole, the atrioventricular valves are closed. d. The P wave occurs during ventricular diastole.
In the early part of the twentieth century, Nilsson-Ehle and others described experiments showing that multiple loci may be involved in the inheritance of certain traits. Such patterns are often called ________
A) continuous traits B) polygenic traits C) indeterminate traits D) threshold traits