Which of the following represents what Darwin thought of artificial selection?
a. He reasoned that if characteristics that better enable organisms to adapt to specific environmental pressures exist, then artificial selection will tend to increase those in succeeding generations.
b. He reasoned that if a person could select different characteristics when breeding organisms, then nature could do so as well.
c. Humans were selecting the characteristics they wanted in the offspring by choosing parents with those traits.
d. Humans were selecting the characteristics they wanted in the offspring by eliminating individuals that did not s
Answer: c. Humans were selecting the characteristics they wanted in the offspring by choosing parents with those traits.
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What two products will the kidneys break down and convert into ammonia?
a. Nucleic acids and nitrogen b. Nucleic acids and water c. Nucleic acids and carbon dioxide d. Nucleic acids and amino acids e. Nucleic acids and sugars
A group of individuals of the same species that occupy a particular area is: a. a population
b. an ecosystem. c. a specimen. d. a community.
Which of the following can be defined as small proteins that are secreted from virally infected cells to prevent the spread of the infection?
A) macrophages B) mast cells C) immunoglobulins D) interferons
DNA polymerase always moves from ________ along the strand resulting in DNA replication to be continuous on one strand and discontinuous on the other
A) phosphate group to base B) 5' to 3' C) 3' to 5' D) base to phosphor group