Some ants and beetles release chemicals that help other members of their species find mates. What are these chemical signals called?, Reflexes, Adaptations, Instincts, Pheromones, How can many moths and butterflies detect pheromones?, By feeling vibrations in the ground, By using their sense of smell, By seeing special colors, By listening to sounds, Which behavior, carried out by horses, elephants, and many other animals, helps offspring survive?, Herding, Imprinting, Courtship, Nest building, Why do many animals herd their offspring?, To help them find mates, To help them build nests, To ensure they are not left behind and stay safe from predators, To teach them how to find food, Which behavior helps protect eggs and young animals from predators and harsh environmental conditions?, Migration, Hibernation, Courtship, Nest building, How do bison protect their young?, They move them underground., They hide them in nests., They form circles around their young for protection., They teach them to climb trees., Which characteristic helps a seed be dispersed by wind?, Thick waterproof covering, Small size and light weight, Large mass and smooth surface, Juicy fruit surrounding the seed, Which of the following is an example of seed dispersal by water?, Coconut, Maple, Beggar-ticks, Dandelion, What characteristic helps a seed be dispersed by animals?, Waterproof outer layer only, Parachute-like structures, Fibrous husks for floating, Hooks that attach to fur or feathers, Name three ways seeds can be dispersed., Rain, sunlight, and rocks, Light, soil, and temperature, Wind, water, and animals, Roots, stems, and leaves, Which statement correctly matches a seed-dispersal method with its adaptation?, Animals — juicy fruits that attract animals, Water — hooks that attach to fur, Wind — fibrous husks for floating, Animals — parachute-like structures, What is a tropism?, A chemical that prevents growth, A plant growth response toward or away from a stimulus, A part of the root system, A type of plant food, What is phototropism?, Plant growth toward or away from light, Plant growth caused only by genes, Plant growth toward gravity, Plant growth in response to touch, A vine clings to a fence after touching it. This is an example of:, Gravitropism, Thigmotropism, Phototropism, Transpiration, Which statement correctly describes gravitropism?, Stems and roots both grow away from gravity., Gravitropism is only a response to light., Stems grow away from gravity, and roots grow toward gravity., Roots grow away from gravity, and stems grow toward gravity., Which factor is an example of a genetic factor that affects plant growth?, Amount of sunlight, Touching a fence, Direction of gravity, Flower color inherited from parents, How does the use of fertilizers affect the environment?, Fertilizers decrease the amount of nitrogen in the environment. This affects the rate at which plants and animals decompose., Fertilizers increase the amount of nitrogen in the environment. An increase in nitrogen disrupts plant processes., Fertilizers increase the amount of nitrogen in the environment. Excess nitrogen can pollute groundwater and surface water., Fertilizers decrease the amount of nitrogen in the environment. A decrease in nitrogen can cause an increase in lightning and storms., How can pesticide use negatively affect the environment?, It prevents all soil erosion., It always increases biodiversity., It increases the number of aquatic organisms., It can pollute groundwater, streams, and rivers., What can happen when vegetation is removed from an area?, More roots hold the soil in place., Soil erosion may increase., Desertification stops., Soil becomes more stable., What is desertification?, Making land less useful for food production, The process of adding nutrients to soil, The growth of forests in dry regions, The increase of biodiversity in farmland, Why are bees important to agriculture?, They increase soil nutrients., They pollinate plants, helping crops produce fruits and seeds., They prevent soil erosion., They remove pesticides from crops., What might happen if the bee population decreases significantly?, Crop production could decrease, resulting in less food available., More crops would be produced., Pesticide use would no longer be needed., Soil quality would automatically improve., Which describes a recyclable object?, It always harms the environment., It is made only from food waste., It is suitable to be processed and used again., It cannot be used again., Natural resources are saved, and damage to the environment is decreased by reducing, reusing, and ______., Throwing away, Burning, Polluting, Recycling

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