The first organism in a food chain is always a:, Carnivore, Herbivore, Producer, Predator, Which process is used by a producer to make glucose?, Respiration, Digestion, Photosynthesis, Decomposing, A herbivore is an organism that, Eats animals b, Eats plants c, Eats dead organisms d, Makes its own food, In the food chain 'Acacia tree $\rightarrow$ Giraffe $\rightarrow$ Lion,' the lion is an example of , Herbivore, Producer, Carnivore, Prey, In a food chain, what do the arrows show?, The direction animals travel, The number of organisms, The recycling of nutrients, The transfer of energy, An organism that is eaten by another is called:, A predator, A producer, Prey, A decomposer, Why do most food chains have only 4–5 levels?, Plants stop growing, Too much energy is stored, Animals stop eating, Energy is lost at each level, A food web is more accurate than a single food chain because it shows, Only 4–5 levels, Only one feeding relationship, Many connected food chains and complex energy flow, The amount of energy lost, Decomposers like bacteria and fungi:, Make their own food, Hunt prey, Are top predators, Break down dead material and release nutrients, Interdependence means:, Organisms live alone, Populations stay the same, Organisms depend on each other to survive, Organisms never change, If the population of producers (like grass) falls, the consumer populations that feed on them will, Increase, Stay the same, Decrease, Start making their own food, A change in one population in a food web:, Only affects the organisms at the top, Is always a positive change, Affects other populations, Only affects the producers, If bee numbers decrease, a likely outcome is that the human food supply will:, Increase, Stay the same, Decrease, Result in more flowers, Bioaccumulation is the gradual build-up of:, Energy in producers, Water in animals, Harmful chemicals in organisms, New prey animals, In a food chain involving fish, seals, and polar bears, which organism will typically have the highest level of accumulated chemicals?, Fish, Seals, Polar bears, Algae, An ecosystem is made up of, Only plants, Only animals, Only non-living things, All plants and animals, and the area where they live, The community in an ecosystem means:, The physical place where organisms live, All the conditions in the habitat, All the plants and animals living together in one area d, Only the decomposers, The physical place where an organism lives is called its, Niche, Community, Habitat, Environment, In the Oak Tree ecosystem, decomposers (like bacteria and fungi) live mainly at the:, Tree canopy, Trunk, Fruits, Roots and leaf litter, The role or position an organism has in an ecosystem, including what it eats and where it lives, is called its:, Habitat, Community, Niche, Environment, Sparrows and squirrels can live in the same tree canopy without competing for food because:, They are different sizes, They are the same species, They have different niches (eat different food), Squirrels only eat insects, Competition occurs in a habitat because resources like food, water, and space are:, Unlimited, Easy to find, Limited, Not necessary, Plants compete for all the following EXCEPT, Space, Light, Minerals, Food, Which of the following is something animals compete for?, Light, Minerals, Mates, Photosynthesis, Increase, Migrate, Which ability helps a predator be a successful competitor?, Being slow, Strong senses (eyesight or hearing), Hiding from all prey, Eating only plants, In the predator-prey relationship cycle of the Canadian Lynx and the Snowshoe Hare, when the hare population increases, the lynx population will, Stay the same, Increase, Decrease, Migrate, A feature that helps an organism survive in its environment (like sharp claws for a cheetah) is called a(n):, Niche, Competition, Adaptation, Ecosystem, Which desert plant adaptation helps to reduce water loss?, Growing tall, Having large leaves, Having a waxy surface, Bright flowers, When conditions change suddenly due to fire or disease, which organisms are most likely to survive and reproduce?, All organisms, Only large animals, Well-adapted organisms, All plants, The snowshoe hare changes its fur color in winter primarily to:, Stay warm, Find food, Camouflage, Make nests.

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