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Topic 1 Science

Living Things in the Biosphere-Lessons 1 and 2 Study Guide

What characteristics do all living things share? they have cells; they grow and develop; they respond to stimulus; they reproduce; they have chemicals (water, carbohydrates, lipids & proteins, DNA); they use/need energy
Describe unicellular organisms. they are made of one cell; they are simple; the cells do not have specific jobs
Describe multicellular organisms. they are made of two or more cells; they are more complex; they have cells with specific functions
Describe sexual reproduction. 2 parents; the offspring is a combination of the two parent cells
Describe asexual reproduction. 1 parent; the offspring is identical to one parent
What is the function of water as a chemical of life? the most common chemical; essential for life
What is the function of carbohydrates as a chemical of life? they provide cells with energy
What is the function of proteins and lipids as a chemical of life? they are used for building cells
What is the function of Nucleic Acids (DNA) as a chemical of life? they provide instructions to carry out the functions of life
Name the 4 needs of all living things. water; food; space; homeostasis
Describe water as a NEED for all living things. cells need it; substances dissolve in water and are transported easily
Describe food as a NEED for all living things. (autotrophs; heterotrophs) autotroph- self feeder (producer) heterotroph- feeds on others (consumer; decomposer)
Describe space as a NEED for all living things. must have food and water in living space; competition for survival exists in this space
Describe homeostasis as a NEED for all living things. to maintain a stable internal environment
Give an example of homeostasis. when it is hot, humans sweat when it is cold, humans shiver when it is sunny, plants lean toward the light
What are the 8 levels of classification? Domain; Kingdom; Phylum; Class; Order; Family; Genus: Species
Which level of classification is the most general? Domain
Which level of classification is the most specific? Species
If 2 organisms are in the same "Order", which other levels of classification do they share? Domain; Kingdom; Phylum; Class
Describe organisms in the Domain Archaea. they are microscopic; they have no nuclei; they often live in harsh environments
Describe organisms in the Domain Bacteria. they are microscopic; they have no nuclei; they are found all around us
Describe organisms in the Domain Eukarya. they have a nuclei; they are usually multicellular
Properly rewrite "calvatia gigantea" using the rules of Binomial Nomenclature. Calvatia gigantea (make sure it is either underlined or in italics)
What genus does Calvatia gigantea belong to? Calvatia
Created by: carlsond



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