- Which of the following is a binomial> A) rhizosolenia B) diatom C) sapiens D) Nitzschia jouseae
- Bacilli are ___ prokaryotes. A) spherical B) spiral C) rod-shaped D) comma-shaped
- An ancestral species and all its evolutionary descendants define a ____. A) genus B) ingroup C) clade D) outgroup
- All organisms that photosynthesize fit into which nutritional category? A) photoautotrophs B) photoheterotrophs C) chemoautotrophs D) chemoheterotrophs
- Why is RNA thought to have been the first genetic material? A) primitive organisms, such as some viruses, have RNA as their genetic material B) RNA has been found on meteorites; DNA has not C) RNA is capable of self-replication; DNA is not D) RNA is structurally simpler than DNA
- Which of the following prokaryotes aid digestion in cattle, deer, and other animals that obtain nutrition from cellulose? A) methanogens B) halophiles C) cocci D) dinoflagellates
- The wing of a penguin is ___ the wing of a butterfly. A) superior to B) homologous to C) structurally identical to D) analogous to
- Which of the following is NOT true? A) the great diversification of animals occurred during the Cambrian explosion B) the first organisms to colonize land were animals C) the evolution of multicellularity took place after the origin of the eukaryotes D) for most of biological history, life was confined to aquatic habitats
- The prokaryotic group that tends to inhabit extreme environments belongs to the ___. A) bacteria B) monera C) protista D) arachea
- The idea that life regularly arises from nonliving matter is referred to as ___. A) spontaneous generation B) endosymbiosis C) speciation D) biogenesis
- Under what abiotic conditions can monomers spontaneously form polymers? A) in the presence of oxygen gas B) when ribozymes are present to catalyzed the reaction C) when water evaporates from a hot surface D) by biogenesis
- Large amounts of oxygen gas appeared in Earths atmosphere about ___ years ago. A) 200 million B) 1.7 billion C) 2.7 billion D) 4.5 billion
- Eukaryotes arose about ___ years after the first prokarytoes. A) 3.0 million B) 1.5 billion C) 3.5 billion D) 4.0 billion
- The science of naming, identifying and classifying organisms is called ___. A) zoography B) phylogeny C) biogeography D) taxonomy
- Spherical bacteria that occur in clusters are ___. A) bacilli B) sprilla C) streptococci D) staphylococci
- What was the first stage of the process that led to the abiotic origin of life? A) origin of self-replicating molecules B) abiotic synthesis of polymers C) abiotic formation of pre-cells D) abiotic synthesis of monomers, such as amino acids and nucleotides
- The absence of ___ in the primitive atmosphere was essential to the origin of life on Eath. A) CH4 B) O2 C) CO2 D) N2
- The wing of a bald eagle is ___ the wing of a penguin. A) unrelated to B) convergent with C) analogous to D) homologous to
- Graphically, the graduated model of speciation can be described as appearing as a ___. A) horizontal line with vertical branches B) W C) Y D) vertical line with horitzontal branches
- Which of the following taxonomic levels is most inclusive? A) class B) family C) order D) genus