100% VERIFIED ANSWERS
Which scientist devised the theory of uniformitarianism to account
for Earth's old age?
A. Plato
B. Darwin
C. Cuvier
D. Lamarck
E. Lyell - ANSWER E. Lyell
Who wrote On the Origin of Species by Means of Natural
Selection?
A. Mendel
B. Malthus
C. Smith
D. Darwin
E. Lamarck - ANSWER D. Darwin
. Genetic variations in natural populations develop due to:
A. random mutations of the DNA
B. changes in diet
C. changes in the environment
D. environmental catastrophies
E. individual activities - ANSWER A. random mutations of the
DNA
Which organism is least likely to survive to
reproduce?
,A. a flower that produces a scent that attracts bees
B. a seahorse that mimics the weeds in which it lives
C. a plant that has a sweet flavor before it flowers
D. a dark-furred rodent that comes out only at night E. a shrub
that produces a toxin in its flower buds that repels deer -
ANSWER C. a plant that has a sweet flavor before it flowers
Inheritable mutations in the genes of an individual
arise due to:
A. random chance
B. environmental change
C. vigorous exercise or effort
D. other species in the environment
E. artificial selection - ANSWER A. random chance
Which of the following statements about mutations is TRUE?
A. Mutations have no effect on the survival and reproduction of
an organism
B. Mutations are almost always better for the organism
C. Mutations are caused by natural selection
D. Mutations occur at random and are by chance
E. Mutations almost always leave the organism worse off than
before - ANSWER D. Mutations occur at random and are by
chance
22. What English economist wrote that the human population
"increases in a geometrical ratio" and would soon exceed Earth's
capacity to support it?
A. Wallace
B. Mendel
C. Hutton
, D. Lyell
E. Malthus - ANSWER E. Malthus
23. Darwin was influenced by Thomas Malthus's writings on:
A. population growth
B. uniformitarianism
C. genetics
D. evolution
E. natural selection - ANSWER A. population growth
24. The theory of natural selection states that:
A. all individuals live to reproduce in each generation
B. only the largest and strongest individuals survive C. random
assortment of genes results in better physical characteristics
in the following generations
D. the most well-adapted individuals in their environments
survive and reproduce, contributing the most genes to the next
generation
E. individuals that mutate in response to changes in their
environment will contribute the most genes to the next generation
- ANSWER D. the most well-adapted individuals in their
environments survive and reproduce, contributing the most genes
to the next generation
25. Natural selection can act on a certain trait only if the trait is:
A. heritable
B. behavioral
C. favorable
D. morphologica l
E. new - ANSWER A. heritable