Geography, 11.11.2019 02:31, hcoulter15
darwin hypothesized that there are definite steps to natural selection. consider the model for natural selection. describe a scenario that represents this model of natural selection according to darwin.
a) in a population of rabbits, some are brown all year long. when it snows these rabbits cannot hide from predators and they become extinct.
b) in a population of sunflowers, mutations cause some flower heads to produce more seeds. more seeds means that there are more sunflower plants over time.
c) in a populations of birds, mutations result in different beak sizes so the birds do not compete for food in the area. the bird population is made up of birds with many different types of beaks.
d) in a population of bacteria, variations exist due to mutation. the bacteria are subjected to antibiotics. some bacteria die; others survive and reproduce. eventually, the bacteria a resistant to the antibiotics.
Answers: 1
Geography, 23.06.2019 11:30, colestout2993
Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent
Answers: 1
Geography, 23.06.2019 14:30, Ruby2480
Which statement about factories in the industrial revolution is not true? a) some of the first advances were in textile mills b) spinning machines used water power c) water power was replaced by steam power d) coal was imported to english factories for power answer d) coal was imported to english factories for power
Answers: 1
darwin hypothesized that there are definite steps to natural selection. consider the model for natur...
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