Bio 182 Exam 1 Study Guide With Questions
And 100% Correct Answers | Verified By
Expert | Brand New Update 2025.
Q: What were the ideas of Lamarck regarding inheritance?
A: In the 19th Century, Lamarck proposed a mechanism called the inheritance of acquired
characteristics, which states that changes affecting an organism during its lifetime (e.g.,
environmental stress or behavior) would be passed to its offspring. ✔✔
Q: What does evolution by natural selection require?
A: Evolution by natural selection requires that organisms possess heritable differences and that
certain organisms reproduce more than others. ✔✔
Q: How does natural selection explain bacterial immunity to antibiotics?
A: Antibiotic action is an environmental pressure; bacteria with mutations allowing survival
reproduce and pass the resistant trait to offspring, resulting in a fully resistant generation. ✔✔
Q: What is the scientific method?
A: The scientific method consists of steps that combine reasoning and observations. ✔✔
Q: What are controls in scientific experiments?
A: Controls are groups in a study that receive no treatment or a placebo to compare outcomes
against the hypothesis. ✔✔
Q: What is the difference between dependent and independent variables in scientific
experiments?
A: The independent variable is changed or controlled to test its effect, while the dependent
variable is what is measured or tested. ✔✔
And 100% Correct Answers | Verified By
Expert | Brand New Update 2025.
Q: What were the ideas of Lamarck regarding inheritance?
A: In the 19th Century, Lamarck proposed a mechanism called the inheritance of acquired
characteristics, which states that changes affecting an organism during its lifetime (e.g.,
environmental stress or behavior) would be passed to its offspring. ✔✔
Q: What does evolution by natural selection require?
A: Evolution by natural selection requires that organisms possess heritable differences and that
certain organisms reproduce more than others. ✔✔
Q: How does natural selection explain bacterial immunity to antibiotics?
A: Antibiotic action is an environmental pressure; bacteria with mutations allowing survival
reproduce and pass the resistant trait to offspring, resulting in a fully resistant generation. ✔✔
Q: What is the scientific method?
A: The scientific method consists of steps that combine reasoning and observations. ✔✔
Q: What are controls in scientific experiments?
A: Controls are groups in a study that receive no treatment or a placebo to compare outcomes
against the hypothesis. ✔✔
Q: What is the difference between dependent and independent variables in scientific
experiments?
A: The independent variable is changed or controlled to test its effect, while the dependent
variable is what is measured or tested. ✔✔
