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Science 7a U 1 Test

QuestionAnswer
Reproduction The ability to produce offspring.
Respiration The process of breaking down sugar for energy.
Excretion The removal of waste.
Locomotion The ability to move from place to place.
Circulation The movement of materials within an organism.
Nutrition The taking in and breaking down of nutrients used by the body.
Irritability The ability of an organism to respond to changes in its environment.
Growth An increase in the size or number of cells.
Synthesis The process of building larger molecules from materials.
Regulation The process of maintaining homeostasis.
Immunity The process of removing bacteria, viruses or foreign materials.
Arm Supports the body tube and is used for carrying the microscope.
Base Supports the microscope and is also used for carrying the microscope.
Light source Collects light and directs it through the opening in the stage.
Eyepiece The part of the microscope that you look through to view an object placed on the stage.
Body tube Allows light to pass upward and through to the eyepiece.
Stage Supports the slide being viewed.
Stage clips Hold the slide in place on the stage.
Diaphragm Increases or decreases the amount of light entering through the stage opening to see the objective you are viewing more clearly.
Revolving nosepiece Holds the low and high power objective lenses and can be rotated to change magnification.
Objective lenses Called the low and high power lenses, add to the magnification of the object you are viewing.
Coarse adjustment knob Moves the body tube up and down to bring the object into view. (Used the coarse adjustment knob when focusing with the low power objective.)
Fine adjustment knob Bring objects into clear, sharp focus. Use it when you are focusing with the high power lens.
Organism A living thing, Classified into groups by their characteristics
Cells Basic unit of life. All living things are made up of cells.
Autotroph Makes their own food through photosynthesis.
Heterotroph Hunts or absorbs their food.
Prokaryotic No defined nucleus, primitivecell Simple cell
Eukaryotic Nucleus with DNA, advanced cell
Asexual reproduction One parent donates DNA 100% of parents DNA
Unicellar Singular cell
Multicellar Made of many cells
Sexual reproduction Two parents donate DNA 50% of each parents DNA
Life span the amount of time an organism is expected to survive.
Stimulus A change in the environment
Response A reaction to a stimulus
What do all living things do? Grow and develoe
Homeostatis keeping all conditions in your body at healthy levels.
Development Changes an organism goes through.
6 characteristics of life 1. Fungi 2. Animalia 3. Plantae 4. Eubacteria 5. Archaeabacteria 6. Protista
Eubacteria True bacteria Prokaryotic Unicellular Autotrophs and Heterotroph Spherical or rod-shaped Found in soil, rocks, oceans, snow and living organisms
Archaeabacteria Differs from other bacteria Prokaryotic Unicellular Autotroph and Heterotroph Found in extreme environments such as hydrothermal vents
Protista Cannot be classified as animal, plant or fungus. Eukaryotes Most are unicellular Autotroph and Heterotroph Ex: slime mold (A), protozoa (B), primitive algae (C)
Fungi Multicellular Eukaryotes All heterotrophs – consumers Ex: yeast (A), mushrooms (B), ringworm (C)
Plantae Multicellular Eukaryotes Most live on land Autotrophs – producer, makes its own food Provides food for heterotrophs.
Animalia Multicellular Eukaryotes Live everywhere Heterotrophs - consumers
Independent Variable the factor being tested in an experiment
Hypothesis An educated guess or prediction that can be tested
The steps of the scientific method. 1. State the problem 2. Research and gather information 3. Form a hypothesis 4. Perform your hypothesis 5. Record and analize data 6. Make a conclusion
Control Group A standard for comparison in a scientific experiment that does not receive the test treatment or intervention
Constants Any factor or condition that is intentionally kept the exact same throughout an experiment
Created by: user-2019060
 

 



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