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Name __________________________ SEPUP Science Unit E Review Complete each statement. Classification shows ____________________ among different groups of organisms. _____________________ use classification systems to help them describe similar organisms. The five -kingdom classification system – _______________________ ______________________ _______________________ ______________________ _______________________ The six- kingdom classification system – _______________________ ______________________ _______________________ ______________________ _______________________ ______________________ The three-domain classification system – ___________________________________ ___________________________________ ___________________________________ Both the 5-kingdom and 6-kingdom classification systems grouped organisms by their ____________________ characteristics, but the 3-domain system groups them by their ______________________ similarity. What is a prokaryote? ______________________________________________________ What is a eukaryote? ______________________________________________________ Classification of Humans Kingdom ______________________ ________________________ Chordata Subphylum ______________________ Class ______________________ _________________________ Mammmalia _________________________ Primata Family ______________________ _________________________ Homo Species ______________________ The original source of energy for all organisms is the __________. Plant cells are different from animal cells. Does the cell contain – Animal Cell Plant Cell nucleus? chloroplast? nuclear membrane? cell wall? mitochondria? cell membrane? vacuole? The cell wall is made of _____________________ and functions to ___________________ the cell. Vacuoles are bubbles of _____________________, salts, and sugars that help the cells keep their __________________. Chloroplasts have a green pigment called ____________________ that absorbs light. Plants use water and ______________________ to make their own food while animals cannot ___________________ their own food. What process does this equation indicate? __________________ carbon dioxide + water sunlight> food + oxygen ________________ - an organism that uses energy from the sun to make its own food ________________ - an organism that gets its energy from producers or other consumers ________________ - an organism that eats dead organisms and wastes from living organisms What is a predator? ______________________________________________________ What is prey? ______________________________________________________ A _________ ________ shows the feeding relationships in ecosystems and the flow of ______________ through the ecosystem. Introduced Species Introduction of a new species into an environment can be deliberate or accidental. If the new species can find food, the population of the new species will ___________________ and the population of the food source will ____________________. An introduced species may be able to survive because it has no natural ___________________________ in the new environment. No one can predict what will happen when a new species is introduced into an area, but there are some trade-offs. – a. the new species may not _______________________ b. the new species may become ______________ of the ecosystem c. the new species my crowd out __________________ species Construct a graph to represent the data and answer the questions. Year Population 1 95 2 120 3 155 4 210 5 250 What kind of graph would best represent this data? ____________ This graph shows ___________________ population. Predict what will happen in the next 5 years. ______________________________________________________ Define population ______________________________________________________ ______________________________________________________ What will happen to the population of an organism if there is an increase in the food supply and a loss of predators? ______________________________________________________ What will happen to the population of an organism if there is a decrease in the food supply and new predators or a competing species appears? ______________________________________________________ ____________________ - scientists who study the relationships between organisms and environments. What would happen to a lake ecosystem if the phytoplankton decrease significantly? ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ What could happen if a new plant is introduced to an ecosystem? ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ Use these words to complete each sentence. biome carrying capacity habitat population ecosystem ___________________ is the interaction between communities of living things and the non-living environment. ___________________ is the place an organism lives with specific requirements (such as water, oxygen, and food). ___________________ is the maximum number of a species that can live successfully in an area. ___________________ is the interaction of climate, geography, and plant and animal life. ___________________ is the number of a species in an area. Carrying capacity can be affected by available ____________________ weather or climate _____________________ predators and competition for _________________ environmental ___________________________ Name _______Key_______________ SEPUP Science Unit E Review Complete each statement. Classification shows __ relationships__ among different groups of organisms. ___ Scientists___ use classification systems to help them describe similar organisms. The five -kingdom classification system – _____ Animal______ ______ Plant______ _____ Protist ______ ______ Fungi _____ _____ Bacteria _____ The six- kingdom classification system – ______ Animal______ ______ Plant______ ______ Protist ________ ______ Fungi ________ ______ Bacteria ________ ______ Archae________ The three-domain classification system – _______ Archae __________ _______ Bacteria _________ _______ Eukaryotes ___________ Both the 5-kingdom and 6-kingdom classification systems grouped organisms by their ____ physical _____ characteristics, but the 3domain system groups them by their ____ genetic____ similarity. What is a prokaryote? _____ A prokaryote is an organism that does not have a nucleus. ______ What is a eukaryote? _____ A eukaryote is an organism that has a nucleus. ________ Classification of Humans Kingdom ______ Animalia ______ ____ Phylum __________ Chordata Subphylum ______________________ Class ______________________ _________________________ Mammmalia _________________________ Primata Family ______________________ ______Genus____________ Homo Species _____sapiens______ The original source of energy for all organisms is the ___ sun ___. Plant cells are different from animal cells. Does the cell contain – nucleus? chloroplast? nuclear membrane? cell wall? mitochondria? cell membrane? vacuole? Animal Cell Yes No Yes No Yes Yes No Plant Cell Yes Yes Yes Yes Yes Yes Yes The cell wall is made of _____ cellulose_____ and functions to _____ support______ the cell. Vacuoles are bubbles of _____ water _____, salts, and sugars that help the cells keep their ____ shape _____. Chloroplasts have a green pigment called _____ chlorophyll _____ that absorbs light. Plants use water and _____ carbon dioxide____ to make their own food while animals cannot _____ produce/make_____ their own food. What process does this equation indicate? __ photosynthesis___ carbon dioxide + water sunlight> food + oxygen ____ producer____ - an organism that uses energy from the sun to make its own food ____ consumer____ - an organism that gets its energy from producers or other consumers ____ decomposer ____ - an organism that eats dead organisms and wastes from living organisms What is a predator? ______ A predator is an animal that kills other animals for food._____ What is prey? ______ The prey are the animals that are hunted and killed for food.________ A ____ food web__ shows the feeding relationships in ecosystems and the flow of ____ energy____ through the ecosystem. Introduced Species Introduction of a new species into an environment can be deliberate or accidental. If the new species can find food, the population of the new species will _____ increase_____ and the population of the food source will ______ decrease ______. An introduced species may be able to survive because it has no natural _______ predators _______ in the new environment. No one can predict what will happen when a new species is introduced into an area, but there are some trade-offs. – a. the new species may not ____ survive _______ b. the new species may become ____ part ____ of the ecosystem c. the new species my crowd out ____ native/existing ____ species Construct a graph to represent the data and answer the questions. Year Population 1 95 2 120 3 155 4 210 5 250 What kind of graph would best represent this data? ___ line graph_ This graph shows _____ increasing ____ population. Predict what will happen in the next 5 years. _______ The population will continue to increase. ________ Define population - _________ Population means – the number of an organism in a certain area. ________ What will happen to the population of an organism if there is an increase in the food supply and a loss of predators? ________ The population will increase. ____________ What will happen to the population of an organism if there is a decrease in the food supply and new predators or a competing species appears? __________ The population will decrease. ____________ _____ Ecologists _____ - scientists who study the relationships between organisms and environments. What would happen to a lake ecosystem if the phytoplankton decrease significantly? ___________ The zooplankton which feed on the phytoplankton will decrease in number. Species which eat the zooplankton will decrease in number. Other species which feed on those species will decrease in number. Etc.________ What could happen if a new plant is introduced to an ecosystem? _______ The new plant may not be able to survive in the ecosystem. The new plant may survive and become part of the ecosystem with no detrimental effects. The new plant may grow too well and become invasive, taking over the ecosystem and crowding out native plants. When a new plant is introduced to an ecosystem, no one knows for sure what will happen. _________ Use these words to complete each sentence. biome carrying capacity habitat population ecosystem _____ Ecosystem _____ is the interaction between communities of living things and the non-living environment. _____ Habitat _____ is the place an organism lives with specific requirements (such as water, oxygen, and food). _____ Carrying capacity _____ is the maximum number of a species that can live successfully in an area. ______ Biome _____ is the interaction of climate, geography, and plant and animal life. _____ Population ______ is the number of a species in an area. Carrying capacity can be affected by available _____ food _________ weather or climate _____ changes ________ predators and competition for ______ food ____ environmental _________ changes _____