How did the work of Charles Lyell influence Charles Darwin, as he was forming his theory of evolution by natural selection?
What will be an ideal response?
Darwin knew of recent writings by Charles Lyell in which the latter showed, by analyzing geological features, that the age of the earth must have been much older than previously thought. Lyell also showed that slow gradual changes in the earth's features over time could lead to significant geological change. In addition, Darwin knew of fossil findings that showed extinct species that closely resembled modern species.
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Which tissue has no direct blood supply?
a. cartilage b. adipose c. loose connective d. dense connective e. bone
Excess glucose is converted into glycogen in the
a. pancreas. b. liver. c. thymus. d. thyroid. e. kidneys.
An organism can exchange matter and energy with its surroundings. Thus, any change in an organism's energy content
must be balanced by a corresponding change in the energy content of the surroundings. As such, an organism is referred to as a(n): a. closed system. b. open system. c. dynamic system. d. potential system. e. thermally reactive system
Which of the following is TRUE of cardiac muscle?
A) It is under voluntary control. B) Its cells contain large numbers of mitochondria. C) Its cells are tapered at each end. D) It is not striated, like skeletal muscle.