| A | B |
|---|
| the one factor that is tested (changed) in an experiment | variable |
| the group in the experiment that does not have the variable | control |
| an educated guess that can be tested | hypothesis |
| recorded observations or measurements | data |
| the first step in the scientific method | state the problem |
| a microscope with more than one lens | compound microscope |
| objective lens = 40X ; eyepiece = 10X ; What is the total magnification? | 400X |
| all the chemical activities of an organism | metabolism |
| the main source of energy from food is | carbohydrates (sugar) |
| glucose is a simple ___ | sugar |
| a signal that causes an organism to react | stimulus |
| the struggle among living things | competition |
| respiration is the life process that produces | energy |
| the chemical that "carries" hereditary information from parent to offspring | DNA |
| the maximum length of time an organism can be expected to live | life span |
| the idea that life could come from non-living things | spontaneous generation |
| the process by which organisms get rid of waste materials | excretion |
| proteins are made of building blocks called | amino acids |
| 65 - 70 percent of the human body is made of | water |
| carbohydrates are made of building blocks called | glucose (simple sugar) |
| gas used by green plants to make food | carbon dioxide |
| the primary source of energy for the earth | sun |
| all the structures that make up a cell are called | organelles |
| protein factories in the cell | ribosomes |
| the cell's control center | nucleus |
| scientist who discovered "all plants are made of cells" | Mathias Schleiden |
| organ that pumps blood | heart |
| cell part that produces energy | mitochondria |
| cells that work together | tissues |
| storage area in the cell | vacuole |
| tissues that work together | organs |
| transport network in the cell | endoplasmic reticulum |
| organs that work together | organ system |
| the process in which glucose is broken down to release energy | respiration |
| cell structure that controls what enters and exits the cell | cell membrane |
| the "blueprints" of life are found on this cell structure | chromosomes |
| kingdom of mushrooms and molds | fungi |
| cells of monerans lack a | nucleus |
| the smallest classification group | species |
| bacteria's kingdom | monera |
| an organism with many cells is called | multicellular |
| another name for any one-celled organism | unicellular |
| the modern system of classification groups things according to | similar characteristics |
| a group of organisms that is able to breed | species |
| the science of classification is called | taxonomy |
| the two groups used in binomial nomenclature | Genus and species |
| one-celled organisms with a nucleus are in the kingdom | protista |
| an organism with many cells and is autotrophic is in the kingdom | plantae |
| protozoan is a Greek word that means | first animal |
| an ameba takes in oxygen through its | cell membrane |
| a one-celled organism that is a flagellate | euglena |
| tiny "hairs" that move a paramecium | cilia |
| an ameba moves using | pseudopods |
| a paramecium eliminates undigested food through the | anal pore |
| light-sensitive reddish spot on the euglena | eyespot |
| pumps out extra water from the paramecium | contractile vacuole |
| most protists live in | water |
