Bio 280 Exam Questions and Answers

Why should we care about microorganisms Answer> They cause disease Microorganisms are ubiquitous Many are beneficial A typical gram of soil has______ Answer> 10⁹ different kinds of bacteria The human body has more _____ cells than than ______ cells Answer> bacterial, human Where a...

Microbiology Answer> The study of living things unseen to the eye First Microscope (year and who) Answer> Zacharias Jansen: 1590 Robert Hooke Answer> 1. Biologist/environmentalist 2. British scientist Robert Hooke was the first to.. Answer> describe "cells" and come up with wo...

Neutral theory proposes that a. most molecular evolution is due to genetic drift rather than natural selection b. natural selection is not a major cause of phenotypic evolution c. most mutations are neutral with respect to selection d. the substitution rate is not related to the neutral mutation...

How many chromosomes are found in prokaryotes? Answer> one What is another place that can have DNA in prokaryotes? Answer> plasmid Bacteria generally have a? Answer> single large chromosome Super Coiled DNA is Answer> DNA packed and coiled which is held together by proteins. It is...

Which novel human activity encouraged the early increase of malaria? Answer> agriculture Genetic drift is the process responsible for: Answer> Losing an existing allele due to random sampling The high incidence of migraine headaches in residents of Norfolk Island (who were moved there fr...

Great Chain of Being Answer> species were arranged on a scale from lower to higher forms Linnean classification Answer> A classification system that breaks down animals into seven levels, each level being a taxon taxa Answer> nested hierarchy of groups taxonomy Answer> the scien...