Jmu bio 140 lab Study guides, Class notes & Summaries

JMU Bio 140 Lab Final Questions and Answers 2022 | 100% Verified Answers JMU Bio 140 Lab Final Questions and Answers 2022 | 100% Verified Answers

JMU Bio 140 Lab Checkpoint Quiz 5-12 Questions and Answers (2023/2024) (Verified Answers)

Why is it important to post-rinse when pipetting volumes less than 20 microliters? A. Small volumes may not get expelled completely due to surface tension. B. You can't accurately pipette less than 20 microliters. C. You don't need to post rinse small volumes. D. Small volumes will evaporate prior to transfer. - A. Pipettors are most accurate in the middle to top end of their volume range. True False - True How can contamination be prevented in the laboratory? A. Keeping test tubes an...

JMU BIO 140 Lab Exam (2023/2024) Questions and Answers (Verified Answers)

What are the parts of the process of science? -exploration and discovery -testing ideas -community analysis and feedback -benefits and outcomes What occurs during exploration and discovery? -making observations -asking questions -sharing data and ideas -finding inspiration -exploring the literature What occurs in testing ideas? -gathering data (hypothesis, expected results, and actual results) -Interpreting data (support/oppose hypothesis, inspire new hypothesis, inspire revised ass...

JMU Bio 140 Lab Checkpoint Quiz 5 - 12 Questions and Answers 2022 | 100% Verified Answers JMU Bio 140 Lab Checkpoint Quiz 5 - 12 Questions and Answers 2022 | 100% Verified Answers

The variable that is manipulated in an experiment is typically called the: a) independent variable b) dependent variable c) control d) causal variable - a This is defined as a proposed explanation for an observation a) experiment b) conclusion c) prediction d) hypothesis - d Type of study that tests a hypothesis but does not manipulate any variables a) quantitative b) non-experimental c) experimental d) descriptive - b You want to test the hypothesis that marigolds repel salamande...

What are the parts of the process of science? - -exploration and discovery -testing ideas -community analysis and feedback -benefits and outcomes What occurs during exploration and discovery? - -making observations -asking questions -sharing data and ideas -finding inspiration -exploring the literature What occurs in testing ideas? - -gathering data (hypothesis, expected results, and actual results) -Interpreting data (support/oppose hypothesis, inspire new hypothesis, inspire revi...

JMU Bio 140 Lab Exam Questions and Answers 2022 | 100% Verified Answers JMU Bio 140 Lab Exam Questions and Answers 2022 | 100% Verified Answers

Why is it important to post-rinse when pipetting volumes less than 20 microliters? A. Small volumes may not get expelled completely due to surface tension. B. You can't accurately pipette less than 20 microliters. C. You don't need to post rinse small volumes. D. Small volumes will evaporate prior to transfer. - A. Pipettors are most accurate in the middle to top end of their volume range. True False - True How can contamination be prevented in the laboratory? A. Keeping test tubes an...