Darwin's proposal that organisms that are better suited to their environment are more likely to survive and reproduce is termed ________

Fill in the blank(s) with correct word


natural selection

Biology & Microbiology

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Archibald Garrod's evaluations of alkaptonuria (black urine in patients) led him to conclude:

A. a mutation can result in a nonfunctional enzyme. B. enzymes are required for biochemical pathways. C. this defect is sex-linked and recessive. D. disjunction can result in a nonfunctional enzyme.

Biology & Microbiology

An ion is:

a. a type of gas. b. an individually charged particle. c. heavy water. d. water with an extra hydrogen atom. e. a neutrally-charged atom.

Biology & Microbiology

In India, which age structure category holds the least number of individuals?

a. pre-reproductive b. early reproductive c. late reproductive

d. early post-reproductive e. late post-reproductive

Biology & Microbiology

Signal sequences that direct proteins to the correct compartment are _________

(a) added to proteins through post-translational modification. (b) added to a protein by a protein translocator. (c) encoded in the amino acid sequence and sufficient for targeting a protein to its correct destination. (d) always removed once a protein is at the correct destination.

Biology & Microbiology