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bio exam
exam
| Question | Answer |
|---|---|
| testing hypotheses often involves designing experiments. which of the following is the factor that is observed and measured in an experiment? | the dependent variable |
| Dr. Smith reads two research papers that present different conclusions of same question. He knows the researcher who wrote Paper A, but does not know the authors of Paper B. When asked which paper he thinks has more merit, Dr. Smith replies, "Paper A." | bias |
| Jane Goodall spent years with the chimpanzees of Gombe. Sitting quietly for hours, she watched the animals closely and took notes about their behavior. What was Jane Goodall doing? | making observations |
| After her run, Aisha felt thirsty. Thirst was her body's way of telling her she needed more water to maintain _____. | homeostasis |
| Tamar is talking evolution with a friend. friend says, "Its just a theory, I don't believe. When they prove it and becomes the law of evolution, then maybe I'll change my mind." Which these replies describes scientific principles or work of scientists? | Scientific theories do not become scientific laws; they are explanations for natural phenomena based on evidence. |
| Camille notices that the leaves of her pothos plant are drooping this morning. The leaves were not droopy yesterday. She decides the plant needs to be watered. What had Camille just done? | made an inference based on past experience and observation |
| Which of the following statements about science is accurate? | Science involves collecting and organizing data about the natural world. |
| They write a scientific paper about their work and submit it to a scientific journal. Other scientists read their paper and look for the unusual star as well. The other scientists are participating in which of these activities? | peer review |
| grandmother is taking part in an experiment. In this experiment, people in Group A are taking the new medication. people in Group B, also grandmother, is taking a pill that does not contain the new medication. In this experiment, what is Group B? | Group B is the control group |
| Much evidence has been discovered to support biological theories such as cell theory and germ theory, and no evidence has been found to prove these theories incorrect. Which statements are true about theories in general? Select all the answers that apply. | -Theories are dynamic and complex, and constantly subject to revision -Theories are broad and useful explanations for how the world works |
| Science began in humankind's natural curiosity to understand & explain the interactions and processes of the world. it aims to use these explanations to understand patterns in nature, also to address issues that face the natural world and human society. | Scientists review and revise current explanations when new evidence arises |
| Scientists' understanding of viruses has advanced greatly in the last fifty years. Which statements give evidence to support the classification of viruses as nonliving? Choose all the statements that apply. | -Viruses do not respond to changes in the environment around them -Viruses must infect living cells in order to reproduce -All viruses are parasites and depend entirely upon living cells for their existence |
| Which pair of crosscutting concepts are exemplified when birds fly south when winter comes to the United States, and north when spring arrives? Choose one. | patterns; cause and effect |
| Biologists have certain criteria that must be met if something is to be considered living. All living things are made up of cells and have ___________, which carries the genetic code. | DNA |
| Living things also ___________, either sexually or asexually | reproduce |
| The chemical reactions of ___________ help an organism use materials and energy to stay alive. | metabolism |
| Living things respond to ___________, signals that come from within or from the environment. | stimuli |
| Most organisms maintain a stable internal environment and the process by which they do this is ___________. | homeostasis |
| Living things can also change over time, or ___________. | evolve |
| Good scientists are _____1______ about the world and make careful ___________. | curious |
| Good scientists are ___________ about the world and make careful _____2______. | observations |
| Although they must be _____3______, they should be willing to change their minds ideas when the __________ demands it. | skeptics |
| , they should be willing to change their minds ideas when the _____4______ demands it. | evidence |
| Good scientists are also _____5______ when proposing ___________ and designing experiments. | creating |
| Good scientists are also ___________ when proposing _____6______ and designing experiments. (6) | hypotheses |
Created by:
marissa24