SC1040 General Bio Section 112 TEST 1 Latest Updated

1. A population is composed of individuals of . a interacting species of different kinds . b all species found in a given area . c interacting species and nonliving things . d a single species interacting with nonliving things . e the same species . QUESTION 2 1. The scope of variation among living organisms is referred to as . a the ecosystem . b taxonomy . c the biosphere . d biodiversity . e heritability . QUESTION 3 1. Taxonomists today tend to group organisms into the same category based on similar . a behavior . b biochemical traits . c morphology . d eating habits . e geographic distributions . QUESTION 4 1. Which of the following set of features best define organisms called eukaryotes? a All are multicelled organisms and their DNA is contained in a nucleus . b They are more like bacteria than archaea and do not have nucleus . c Their cells are less complex than bacteria or archaea and are multicelled . d Their cells are typically smaller than bacteria and are single- . celled QUESTION 5 1. Which of the following is a characteristic of all fungi? a They are prokaryotic consumers. . b They actively move during part of their lives. . c They make their own food. . d They break down food externally. . e They are multicelled. . QUESTION 6 1. What name is given to the scientific study of life? a geology . b ecology . c geography . d biology . e statistics . QUESTION 7 1. Which organisms are single-celled and lack a nucleus? a bacteria and archaea . b fungi and bacteria . c bacteria and protists . d archaea and protists . e fungi and archaea . QUESTION 8 1. In which of the following groups does seaweed belong? a fungi . b protists . c bacteria . d archaea . e plants . QUESTION 9 1. The emergent property of “life” appears at the level of the , when many molecules become organized. a population . b cell . c community . d atom . e organism . QUESTION 10 1. Lipids, proteins, DNA, RNA, and complex carbohydrates are all . a cells . b atoms . c molecules . d minerals . e elements . QUESTION 11 1. In the Olestra experiment conducted by researchers at the Johns Hopkins University School of Medicine, the people who ate the Olestra potato chips were the . a research group . b independent group . c hypothetical group . d experimental group . e control group . QUESTION 12 1. In the Olestra potato chip experiment, the report published in the Journal of the American Medical Association in January 1998 indicated that . a Olestra potato chips cause cramping . b potato chips without Olestra cause cramping . c people should not eat potato chips . d watching movies cause cramping . e there was no evidence that Olestra caused cramping . QUESTION 13 1. An experimenter wanted to test the effects of cigarette smoking on rats. She infused the cages of 50 rats with cigarette smoke and the cages of another 50 rats with pure, clean air. The rats that received the clean air were the . a experimental group . b independent group . c predictive group . d control group . e model group . QUESTION 14 1. A result is statistically significant if . a it is widely accepted . b it is likely to have occurred by chance . c it is likely to have occurred in 50% of the cases . d it is unlikely to have occurred by chance . e it is consistent with predictions . QUESTION 15 1. In science, a theory is defined as . a a hypothesis . b a personal conviction . c an explanation that is well documented and consistent with the evidence . d a speculative guess . e a description of a phenomenon for which there is no explanation . QUESTION 16 1. What practice helps scientists avoid bias in their findings? a reaching conclusions based on personal conviction . b designing experiments that other researchers will find difficult to replicate . c performing experiments testing all circumstances . d publicly publishing their results . e avoiding questions that may be at odds with society’s moral standards . QUESTION 17 1. A control group . a is an untreated group of individuals or subjects . b is often an unnecessary waste of material . c receives the same treatment as the experimental group . d is sometimes exposed to harsh conditions . e is not subjected to experimental error . QUESTION 18 1. Sampling error can be minimized by which one of the following? a throwing out data that does not fit the conclusion . b using a small subset of a larger population . c carefully selecting samples to match the prediction . d using a large sample size . e conducting the experiment or observation only once . QUESTION 19 1. The final step in the scientific method for a scientist is . a collecting data . b report his or her results . c researching the literature for similar investigations . d devising an experiment . e making observations . QUESTION 20 1. In the 2005 peacock butterfly experiment, what was the conclusion? a Peacock butterflies with spots mated more often than those without spots. . b Predatory birds are deterred by peacock butterfly clicking sounds. . c Peacock butterflies that made clicking sounds attracted more predatory birds. . d Predatory birds are deterred by the dark color of the peacock butterfly. . e Predatory birds are not deterred from eating peacock butterflies with spots. .