TEKS Grade 7 Science - 7.10 - Diagnostic Ecosystems Microhabitats
Quiz by Texas Education Agency
Grade 7
Science (2017)
Texas Essential Knowledge and Skills (TEKS)
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10 questions
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- Q1Warm temperature and an abundance (lots) of rain, plants and animals. What Biome am I?DesertTaigaTundraRainforest30s7.10a
- Q2What is the most important factor in determining which biome is found in an area?Biotic factorsSoil typeAnimals presentClimate30s7.10a
- Q3Tropical rain forests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem?The presence of a variety of herbivore species that can feed on a large number of different producer species helps ensure abundant prey for predators in the ecosystem.All of theseThe presence of more species with different adaptations makes it more likely that some organisms will survive an ecological disaster.Greater genetic variation within species makes it more likely that some individuals will survive a disease outbreak.30s7.10b
- Q4If you cut down trees in an ecosystem, what will likely happen?Reduce the variety of organisms living on earthReduce the amount of air pollutionIncrease the number of different ecosystems on earthIncrease the number of plants living on earth30s7.10b
- Q5Which ecosystem is more biodiversity, and therefore more sustainable?The ecosystem with more genetic variation so species can adapt.The ecosystem that has more energy because of the autotrophs.The ecosystem that has more decomposers to recycle nutrients.The ecosystem with more top predators so they need more food.30s7.10b
- Q6An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms in the ecosystem either leaving the area or dying off. Increased biodiversity results in a more sustainable ecosystem because —a greater number of plant species means that there is less barren landthe transition area between two ecosystems is narrowerthere are fewer species to be affected by environmental stressesa greater variety of species present allows more organisms to adapt after changes occur30s7.10b
- Q7Some students take care of a vegetable garden. When it is time to plant in the spring, the students leave part of the garden empty in order to observe ecological succession. Which of these will most likely occur first?Growth of weeds and grassesDevelopment of a streamGrowth of trees and shrubsDevelopment of topsoil30s7.10c
- Q8Both primary and secondary succession begin with pioneer species that —invade the area so that new organisms cannot be establisheduse up all the existing resources and prevent establishment of non-native organismsmodify the area and allow larger and more complex organisms to appearchange the area and make it safer from predatory organisms30s7.10c
- Q9Weeds and then small trees, what type of succession are you in....Secondary SuccessionPrimary SuccessionBiological SuccessionHeterotrophic Succession30s7.10c
- Q10If left unaltered (not changed), what will happen to this ecosystemthe relocation of many native speciesan ecosystem without any decomposersthe loss of consumers that cannot be recovereda stable ecosystem that can last for many years30s7.10c
