Which naturalist wrote a 44-volume natural history on plants and animals, and suggested migration, environmental influences, isolation, and overcrowding might affect how organisms descend with modifications?
A. Darwin
B. Leclerc
C. Lamarck
D. Cuvier
E. Lyell
Answer: B
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How can an amino acid sequence be used to design a gene-specific hybridization probe?
A) A portion of a polypeptide chain can be synthesized based on the amino acid sequence of the full protein. B) A protein can be purified, it can be digested with proteases that cleave it at specific sites, and one of the peptide fragments can be used as a probe. C) All possible nucleotide sequences that could encode a portion of the polypeptide can be synthesized and used as probes.
The protective structure where egg cells are formed in bryophytes and seedless vascular plants is the
a. antheridium. b. stoma. c. strobilus. d. sporangium. e. archegonium.
Which of the following is a source of new alleles
within a population? a. genetic recombination b. meiosis c. mutation d. genetic drift e. natural selection
The position of mammals in evolution is best described as
A. they dominate life in the sea. B. they arose from mammal-like reptiles in the Jurassic but remained small and insignificant while dinosaurs dominated the land. C. mammals gave rise to birds. D. they were among the first animals to live on land and their diversity is greater than all living things known. E. All of the choices are correct.