The Scientific Method
This is the first step in the scientific method where you ask a question or identify a problem.
What is making an observation?
All living things share this ability to maintain a stable internal environment.
What is homeostasis?
This is the simplest level of organization, consisting of the smallest unit of life.
What is the cell?
Cells of this type lack a nucleus and membrane-bound organelles but have a cell wall and circular DNA.
What is a prokaryotic cell?
This process allows cells to divide and produce identical daughter cells.
What is mitosis?
In this step, you create a testable statement that predicts an outcome.
What is forming a hypothesis?
Living things respond to this in their environment to survive.
What is stimuli?
This is the highest level of organization that includes all living things and their physical environment.
What is an ecosystem?
This type of cell contains a true nucleus where DNA is enclosed and has multiple membrane-bound organelles.
What is an eukaryotic cell?
This process involves the movement of water across a selectively permeable membrane from an area of low solute concentration to high solute concentration.
What is osmosis?
This type of variable is deliberately changed by the experimenter to test its effect.
What is the independent variable?
All organisms are composed of both organic (ex. DNA) and inorganic (ex. water, acids, bases, salts) molecules
What is Chemical or Molecular Makeup?
At this level, populations of various species coexist and interact, influencing each other’s survival and resource availability within a defined area.
What is a community?
This rigid exterior layer is found in most prokaryotes and some eukaryotes, providing protection and shape but varies chemically between groups.
What is the cell wall?
The fluid mosaic model describes the structure of this cellular component.
What is the plasma membrane?
This type of experiment includes two groups: one that receives the variable being tested and one that does not, allowing scientists to compare results effectively.
What is a controlled experiment?
This refers to the the transformation of food to energy.
What is metabolism?
This level encompasses diverse ecosystems connected through global cycles of energy and nutrients, supporting life across the planet.
What is a biosphere?
Unlike eukaryotes, prokaryotes reproduce primarily through this simple, rapid process that does not involve mitosis.
What is binary fission?
This enzyme unwinds the DNA double helix during replication.
What is helicase?