Definitions
A change in an organism's surroundings that causes it to react is called this.
Stimulus
Cells in many-celled (or multicellular) organisms are quite ____________ from each other.
Different
What is the function of a cell membrane?
To control what enters and leaves the cell
What is the total magnification of a microscope with two lenses when one lens has a magnification of 15, and the other lens has a magnification of 30?
450 (Multiply the two together...15 x 30 = 450)
Which of the following is NOT a characteristic that all living things share?
a. a cellular organization
b. using energy
c. movement
d. reproduction
c. movement
Homeostasis refers to an organism's ability to do what?
Maintain stable internal conditions
Specialized cells are found only in what type of organisms?
many-celled or multicellular
Which organelle is the control center of a cell?
Nucleus
What does the term resolution refer to?
How sharp an image is
a. how they move
b. where they live
c. their ability to make food
d. their ability to reproduce
The scientific study of how living things are classified.
Which of the following statements is part of the cell theory?
a. Only plants are composed of cells
b. All cells are produced from other cells
c. Cells can be produced from nonliving matter
d. Cells are one of several basic units of structure and function in living things
b. All cells are produced from other cells
What is the function of a cell wall?
To protect and support the cell
The invention of the microscope made it possible for people to discover what?
Cells
The experiments of Redi and Pasteur helped to demonstrate that living things did not what?
arise from nonliving material
An organism's scientific name consists of what two names?
Genus name and species name
Which of the following statement is NOT part of the cell theory?
a. Cells are the basic unit of structure and function in living things.
b. All cells are produced from other cells
c. Only animals are composed of cells
d. All living things are composed of cells
Which organelles store food and other materials needed by the cell?
Vacuole
What do all living things need to survive?
Water
A plant grows toward the light. The plant's action is an example of what?
Response
Spontaneous generation is a mistaken idea because living things are produced only by what?
other living things
Which group of organisms includes only multicellular heterotrophs?
a. protists
b. bacteria
c. plants
d. animals
d. animals
Which organelles release chemicals that break down large food particles into smaller ones?
Lysosomes
The source of energy for most autotrophs is the what?
Sun
Why do scientists organize living things into groups?
So that organisms are easier to study