The biggest problem facing coastal habitats is not dumping but:
a. overfishing.
b. river runoff.
c. development.
d. offshore oil spills.
e. nuclear power plant leakage.
C
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The pattern of wet years and dry years shown will probably move the population toward
A. all having larger beaks.
B. all having smaller beaks.
C. having intermediate size beaks.
D. having two, distinct populations.
E. maintaining abundant variation in beak depth.
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about natural selection? What other information is related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Insulin is produced and released from the pineal gland
Indicate whether the statement is true or false.
Which human trait shows a continuous variation?
a. Cystic fibrosis b. Marfan syndrome c. Eye color d. Blood type e. Sickle cell anemia
How is variation in large natural populations possible? a. The presence of alleles in individuals
b. The presence of DNA in individuals. c. The presence of chromosomes in individuals. d. The presence of genes in individuals.