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- What are the key features of life? Select all that apply. A. Organisms sense and respond to changes in their environmentB. Genetic information in the form of DNA is passed to offspringC. Organisms are composed of one or more cellsD. Organisms acquire energy and nutrients through consumption of other organismsE. Life is sustained by inputs of energy and nutrientsThe ____________ is the basic unit of life. a. organism b. cell c. tissue d. organWhat is life, making reference to the properties shared by all living things? Describe each of those properties.
- A factory located near a river pumps heated water into the river. The heated water decreases the amount of oxygen in the river. An STS class is discussing what this decrease in oxygen would do to the river. Bam thinks less oxygen would change the type of organisms that live in the river. Mel thinks the type of organisms would stay the same, but there would be a lot less organisms. QUESTIONS: Who do you agree with? Bam?Mel? both Bam and Mel? Why are they right? What would happen if oxygen in a stream decreases?Which of these is not a property of all living organisms?a. organizationb. acquisition of materials and energyc. care for their offspringd. reproductione. responding to the environmentThe following is an independent type of life: O a. Organ O b. Organelle O c. Organism O d. Organ System Oe. None of the Above
- What do you mean by living? Explain the defining characteristics of living organisms.What is the lowest level of biological organization that biologists consider to be alive?a. a proteinb. DNAc. a celld. a multicellular organisme. a population of organismsWhich of the following is NOT a property of life? a. Energy utilization b. Movement c. Order d. Homeostasis
- Models Have Limitations Since models are simpler than real objects or systems, they have limitations. A model deal tem. It may not predict the behavior of the real system very accurately. But the more com model and the care with which the scientists construct the model can increase the chance: MULTIPLE CHOICE A model: B C Deals with only a portion of a system Can't be used for making predictions Is time consuming MO E arremer 1 ouHow would you define life? using the properties that defines lifeWhich of the following embodies the greatest amount of scientific information?a. a factb. a law of naturec. a theoryd. a deductione. a hypothesis
