5 Written questions
5 Matching questions
- molecular clock
- P site
- a evolutionary timing method based on the observation that at least some regions of genomes evolve at constant rates
- b a virus that infects bacteria; also called a phage
- c a biome at the northernmost limits of plant growth and at high altitudes, characterized by dwarf woody shrubs, grasses, mosses, and lichens
- d one of two of a ribosome's binding sites for tRNA during translation. It holds the tRNA carrying the growing polypeptide chain. (P stands for peptidyl tRNA.)
- e a large spiral-shaped (curved) prokaryotic cell
5 Multiple choice questions
- in a cladistic study of evolutionary relationships among taxa of organisms, the group of taxa that is actually being analyzed
- the use and reuse of chemical elements such as carbon within an ecosystem
- a digestive tube with two openings, a mouth and an anus.
- a embryonic stage that marks the end of cleavage during animal development; a hollow ball of cells in many species.
- comparing nucleic acids or other molecules to infer relatedness
5 True/False questions
ecological species concept → the definition of a species as a population or group of populations whose members have the potential in nature to interbreed and produce fertile offspring; also called a sexual species
chaparral → a diagram depicting patterns of shared characteristics among species
decomposer → the scientific study of how organisms interact with their environments
transfer RNA → (rRNA) the type of ribonucleic acid that, together with proteins, makes up ribosomes; the most abundant type of RNA.
decomposition → animal behavior in transmission of, reception of , and response to signals