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bio Drake

QuestionAnswer
what does homeostasis mean? cell to maintain internal equilibrium
what are the seven characteristics of all living things? 1.Cells 2.Have Different levels of cellular organization 3.Use Energy 4.Respond To Their Environment 5.Grow 6.Reproduce 7.Adapt To Their Environment
what is metabolism? a chemical reactions that builds up or breaks down materials.
what is an autotroph? A organism capable of making nutritive organic molecules from inorganic sources via photosynthesis (involving light energy) or chemosynthesis (involving chemical energy)
what is a heterotroph? An organism that is unable to synthesize its own organic carbon-based compounds from inorganic sources, hence, feeds on organic matter produced by, or available in, other organisms.
what are the two different types of reproduction and what are the 3 ways they differ? 1.asexual reproduction=without sex, a single organism,
what are the five steps of the scientific method. 1.Ask a Question. 2.Do Background Research. 3.Construct a Hypothesis. 4.Test Your Hypothesis by Doing an Experiment. 5.Analyze Your Data and Draw a Conclusion Communicate Your Results.
what is the independent variable. independent variable= is the one that is changed by the scientist.
what is the dependent variable. dependent variable= to see how it responds to the change made to the independent variable.
what is a control variable. Controlled variables are quantities that a scientist wants to remain constant, and he must observe them as carefully as the dependent variables.
what is a control group. The group of test subjects left untreated or unexposed to some procedure and then compared with treated subjects in order to validate the results of the test.
what does the atomic number represent? number of protons in a atom
what is a ion? an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
what is a compound? a thing that is composed of two or more separate elements; a mixture.
what is cohesion? attraction between 2 water molecules
what is adhesion? attraction between water and other molecules
what did robert hooke do? discover the cell theory
what are the three main parts of the cell theory? 1.all living things have cells 2.cells are the basic unit of life 3.cells only come from preexisting cells
what is a eukaryote? cells with membrane bound organelles and nucleus
what is a prokaryote? cells that don't have membran
what organelle protects the cell? cell membrane
what two things are the cell membrane made out of? 1.phospholipide 2.protein
what does selectively permeable mean? only certain things may pass through
what is an organelle? structures in a cell that proforma specific function.
what is the function of the mitochondria? power house of the cell
Created by: quepaw2017
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