__________________ is the greater relative survival and reproduction of individuals in a population that have favorable heritable traits, leading to evolutionary change

A. Natural selection
B. Mutation
C. Genetic drift
D. Gene flow


A. Natural selection

Biology & Microbiology

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To which of the following groups does the

organism in the above figure belong? a. diplomonads, parabasalids, trypanosomes, and euglenoids b. ciliates, dinoflagellates, and apicomplexans c. water molds, diatoms, and brown algae d. chlorophyte and charophyte algae e. amoebas and slime molds

Biology & Microbiology

Which of the following correctly represents the probability that a detrimental autosomal recessive

allele will actually be expressed in a population if the occurrence of the allele is such that 1 in 50 individuals are heterozygous? a. 1/50 ? 1/50 = 1/2500, with 1/4 of their children homozygous recessive = 1/2500 ? 1/4 = 1/10,000. b. 1/50 ? 1/4 that are homozygous recessive = 1/200. c. 1/50 ? 2 children (on average) ? 1/4 that are homozygous recessive = 1/100. d. 1/50 ? 2 parents ? 4 children ? 1/4 that are homozygous recessive = 1/25. e. Cannot be determined from the information given.

Biology & Microbiology

Antibodies are ________

A) composed of four fatty acid chains B) a type of lymphocyte C) proteins with short carbohydrates attached D) proteins consisting of four polypeptide chains

Biology & Microbiology

Coacervates can 

A. absorb chemicals from the environment. B. separate their internal contents from their surroundings. C. be synthesized in the lab. D. All of the above are correct.

Biology & Microbiology