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General Biology Chapter 1 Study Guide

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Termini in questo insieme (20)

  • What are the three domains of life?

    The three domains are Bacteria, Archaea, and Eukarya.

  • In which domain would you find extremophiles?

    Extremophiles are found in the domain Archaea.

  • In which domain(s) would you find prokaryotes?

    Prokaryotes are found in the domains Bacteria and Archaea.

  • What are the properties of living things?

    Living things exhibit properties such as growth, reproduction, response to stimuli, metabolism, homeostasis, and cellular organization.

  • What are all living things made of?

    All living things are made of cells.

  • What is a hypothesis?

    A hypothesis is a testable statement that explains an observation and often includes a justification.

  • What makes a good hypothesis?

    A good hypothesis is testable, explains an observation, and often includes a reason for the statement.

  • Which of these is a good hypothesis? 1) Are cells going to divide quickly if I add proteins? 2) Cells will divide quickly when proteins are added because proteins speed up the cell cycle. 3) I think proteins can make cells divide quickly.

    Option 2 is a good hypothesis because it is a testable statement with a justification.

  • What is a theory in biology?

    A theory is a well-supported explanation of natural phenomena based on a body of evidence.

  • What is an independent variable in an experiment?

    The independent variable is the factor that is changed or manipulated by the researcher.

  • What is a dependent variable in an experiment?

    The dependent variable is the factor that is measured or observed in response to changes in the independent variable.

  • What is a controlled experiment?

    A controlled experiment compares an experimental group to a control group to test the effect of one variable.

  • What is the control group in an experiment?

    The control group does not receive the experimental treatment and serves as a baseline for comparison.

  • What is the experimental group in an experiment?

    The experimental group receives the treatment or condition being tested.

  • In an experiment giving proteins to cells and measuring cell multiplication, what is the independent variable?

    The independent variable is the addition of proteins to the cells.

  • In an experiment giving proteins to cells and measuring cell multiplication, what is the dependent variable?

    The dependent variable is the rate of cell multiplication.

  • In a clinical trial with a new drug and placebo, which is the control group?

    The group receiving the placebo is the control group.

  • In a clinical trial with a new drug and placebo, which is the experimental group?

    The group receiving the new drug is the experimental group.

  • What are the levels of the hierarchy of organization of life?

    Levels include cell, tissue, population, community, and ecosystem.

  • Which level encompasses all others: tissue, community, ecosystem, population, cell?

    Ecosystem encompasses all the other levels.