Exam 1 Study Guide

Exam 1 Study Guide - Exam 1 Study Guide 1. Biology means...

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Exam 1 Study Guide 1. Biology means life 2. List some characteristis of life. -Reproduction -Ability to move -Ability to adapt, shows evolution -Metabolism- respiration, digestion -Made of DNA – genetic material -Ability to respond to environment -Shows homeostasis 3. Homeostasis means “steady state ” physiological equilibrium 4. Example of biotic vs abiotic things Bacteria, animals, plants, fungi, protista (teacher) Abiotic factors are those non-living physical and chemical factors which affect the ability of organisms to survive and reproduce. Like light intensity, temperature range, type of soil or rock, pH level Biotic factors are all the living things or their materials that directly or indirectly affect an organism in its environment. Like parasitism, disease, predation 5. List the levels of organization and examples -Atoms: Atoms make up elements – oxygen, carbon, hydrogen -Molecule: 1. through chemical bonding, elements form large molecules 2. Proteins, carbohydrates, fats, nucleic, aci, CO2 -Organelles: 1. Molecules within cell to help it function 2. Not living -Cell: 1. Basic unit of life; 2. smallest unit of life 3. Mostly microscopic -Tissue: 1. Groups of cells with common function 2. Ex: muscle tissue, nervous tissue. -Organs: 1. Tissues come together to form organs -Systems: 1. Organs form body systems 2. 10 body systems -Organism: all the 10 body systems form one organism or body -Population: 1. Organism grouped according to similar characteristics into specie 2. Species -Community: populations of different species coexisting together in an area -Ecosystem: Different species with in different communities co-exit together in a large area -Biosphere: 1. Area of earth that contains life 2. Air to land to underwater 6. Area of earth that contains life are biosphere 7. Term for scientific guess is Hypothesis 8. 3 forms of matter are Solid, liquid, gas 9. Characteristics of matter a. Made of elements – oxygen, hydrogen
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Exam 1 Study Guide - Exam 1 Study Guide 1. Biology means...

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