(This will not be Test tomorrow)
Scientists form a proposed explanation (educated guess) made on the basis of limited evidence as a starting point for further investigation.
A. Hypothesis
B. Observation
C. Experiment
A. Hypothesis
What are the two types of organisms that exist?
A. Plant and Animal
B. Unicellular and Cellular
C. Mitochondria and Vacuoles
B. Unicellular and Cellular
What is considered "the least complex" in the levels of organization?
The Atom
What kind of cell is this? How do you know?
Plant cell. It has a cell wall, central vacuole, and chloroplast.
How many minutes do you have to get to each class period?
4 minutes
Which variable do experimenters change in order to test their hypothesis?
Independent Variable
How are unicellular organisms different from multicellular organisms?
unicellular organisms only have one cell, multicellular organisms have many cells.
What is considered "the most complex" in levels of organization?
Organism
Describe the function of the Vacuole
Stores water and other products of the cell
How many letters are in the alphabet?
26
In a valid experiment, what variable must stay the same and cannot change during the experiment?
Constant Variable
Which part of the cell theory does the photo represent?
Cells are the basic units of life.
What makes up molecules?
when two or more atoms combine
Describe the function of Mitochondria
Makes energy for the cell activities
Who was the first president of the United states?
George Washington
A logical order to the Scientific Method starting with Observations, Form a hypothesis, ________, Gathering Data, Drawing Conclusions.
experiment
Describe each part of the cell theory
All living things are made up of one or more cells.
The cell is the structural and functional unit of all living things.
Cells come from pre-existing cells
What makes up the structure of the atom?
protons, neutrons, electrons.
What is the nickname for the nucleus?
"The brain"
Who is this?
Rod Wave
In the Come Fly With Me Experiment we measured the distance of the paper plane traveled. The distance traveled reflected which variable?
Dependent Variable
Which part of the cell theory is demonstrated in the picture?
Cells arise from preexisting cells
List the levels of organizations from least to most complex.
Atom, Molecules, Cells, Tissues, Organs, Organ systems, Organisms
Why do animal cells not need a cell wall?
Animal cells do not have cell walls because they do not need them. Cell walls, which are found in plant cells, maintain cell shape, almost as if each cell has its own exoskeleton. This rigidity allows plants to stand upright without the need for bones
(Answers Varies)
Name 3 characters in the movie Frozen?
Answers Varies