Copy of Study Guide Unit 1 PDF

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BrotherlyVector

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Woodrow Wilson Middle School

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biology life characteristics cells science

Summary

This is a study guide for unit 1 of biology covering the characteristics of life, including cells, growth, reproduction, energy, chemical compounds, responding to the environment, and homeostasis.

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Unit 1: 6 Characteristics of life Cells ○ Uni: know examples of organisms; germs, bacteria ○ Multi: know examples of organisms; humans, animals Growth and Development; growing taller or maturing Reproduction; making more ○ Asexual(duplication...

Unit 1: 6 Characteristics of life Cells ○ Uni: know examples of organisms; germs, bacteria ○ Multi: know examples of organisms; humans, animals Growth and Development; growing taller or maturing Reproduction; making more ○ Asexual(duplication of cells, 1 parent) vs sexual(2 parents mixing genes) Energy use(food) ○ Sources: autotroph(create own food) vs heterotroph(eat other organisms) Chemical compounds ○ Lipids - nuts, peanut butter, avocado and cell membrane ○ Proteins - chicken, turkey, egg, yogurt and cell membrane(plasma membrane) ○ Carbohydrates - bread, pasta, noodles and found on the outside of the cell ○ Nucleic acids - mushrooms and fish and found in nucleus ○ Water - cytoplasm Respond to environment ○ What is a stimuli? Change in environment that evokes reaction ○ Example of stimuli and response. Room heating up, sweating to cool down 4 Things living organisms need to survive Food Water Air Homeostasis ○ Examples of homeostasis, sweating, shivering, blood sugar storing Spontaneous generation - know what it means and how it was disproved; the false belief the living things come from non-living things. Redi and pasteur used meat, jars, sterile broth and broken flasks to disprove this. Controlled variables(held constant, no change), independent variables, dependent variables definitions

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