MSROGERSINEEDHELP
Should you lick the specimen when doing a dissection?
NO!
What is a hypothesis?
A testable statement
A cell
Eyepiece
What is the acronym I gave you to help you remember the characteristics of life?
MR. CHEDDR
Why is it important to follow lab safety instructions?
to ensure safety of everyone in the room
Identify the dependent variable in the following hypothesis:
If students smile at their teacher, then they will receive no homework.
receiving no homework
Robert Hooke
What is the objective lens?
the lens closest to the specimen
What is the difference between multicellular and unicellular organisms?
Multicellular are made of more than one cell
Unicellular are made of one cell
to prevent contamination and exposure from harmful substances
Identify the independent variable in the following hypothesis:
If chocolate is given to teachers, then the amount of homework will decrease.
giving chocolate to the teacher
Who said that all living cells come from other cells?
Rudolph Virchow
How do you change between the different objective lenses?
By rotating the nosepiece
What are the two types of reproduction?
Sexual and Asexual
What is the first step you should take before starting an experiment?
Read everything and make sure you understand everything
What is the purpose of a control group?
To serve as a baseline to compare the experimental group
The Microscope
What is used to adjust the amount of light going through the stage?
The diaphragm
Identify the stimulus in the following statement: Eye pupils constrict when light is brighter.
close toed shoes, no loose clothing, hair pulled back
List at least 3 controlled variables in the following experiment:
An apple is cut into slices. Half of the slices are sprayed with lemon juice. All slices are stored in a sealed plastic bag. After 4 days, they are observed to see how brown they turned.
Size of slices, amount of juice, time in bag, type of bag, etc.
1. The cell is the most basic unit of life.
2. All living organisms are made of 1 or more cells.
3. All cells come from existing cells.
Why are microscopes important to science?
they allow scientists to study small structures and living organisms
Put in order of smallest to largest: Organisms, Organelles, Tissues, Cells, Organs and Atoms.
Atom, Organelle, Cell, Tissue, Organ and Organism.