Life The Science of Biology 9Th ed by davidSadavaThe basic structural and physiological unit of all living organisms is the 2. aggregate. 3. organelle. 4.
... [Show More] organism. 5. membrane. 6. cell. Answer: e Textbook Reference: 1.1 What Is Biology? Page: 4 Bloom’s Category: 1. Remembering 1. A cell 2. can be composed of many types of tissues. 3. is found only in plants and animals. 4. is the smallest entity studied by biologists. 5. may be a distinct entity or a building block of a more complex organism. 6. All of the above Answer: d Textbook Reference: 1.1 What Is Biology? Page: 4 Bloom’s Category: 2. Understanding 1. Darwin noted that all populations have _______ potential to grow, but that in nature most populations _______ over time. 2. limited; are stable 3. unlimited; grow slowly 4. limited; fluctuate unpredictably 5. unlimited; are stable 6. limited; decrease slowly Answer: d Textbook Reference: 1.1 What Is Biology? Page: 5 Bloom’s Category: 2. Understanding 1. A species consists of 2. all the organisms that live together in a particular area. 3. morphologically similar organisms that cannot interbreed. 4. morphologically similar organisms capable of interbreeding. 5. an adult organism and all of its offspring. 6. morphologically similar organisms that live in the same area. Answer: c Textbook Reference: 1.1 What Is Biology? Page: 5 Bloom’s Category: 1. Remembering 1. Based on the large numbers of offspring produced by many organisms, Darwin proposed that mortality was high and only a few individuals survived to reproduce. He referred to the differential reproductive success of individuals with particular variations as 2. evolution. 3. artificial selection. 4. the cell theory. 5. natural selection. 6. inheritance of acquired characteristics. Answer: d Textbook Reference: 1.1 What Is Biology? Page: 5 Bloom’s Category: 1. Remembering 1. A key point in Darwin’s explanation of evolution is that 2. the biological structures most likely to be inherited are those that have become best suited to the environment through constant use. 3. all mutations that occur are those that will help future generations better fit into their environments. 4. any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be strongly favored and will spread through the population. 5. genes change in order to help organisms cope with problems encountered within their environments. 6. extinction is nature’s way of weeding out undeserving organisms. Answer: c Textbook Reference: 1.1 What Is Biology? Page: 5 Bloom’s Category: 1. Remembering 1. Which of the following statements is true? 2. The diversity of life has depended on similar environments and ecological communities throughout the globe. 3. Sexual selection and genetic drift contribute to the diversity of life. 4. Earth has existed and changed over a few thousand years, at most. 5. All ancestral forms of life were very similar to organisms that currently exist. 6. All organisms are genetically closely related. Answer: b Textbook Reference: 1.1 What Is Biology? Page: 5 Bloom’s Category: 4. Analyzing 1. All living organisms acquire _______ from their environment. 2. food 3. nutrients 4. sunlight 5. heterotrophic nutrition 6. autotrophic nutrition Answer: b Textbook Reference: 1.1 What Is Biology? Page: 6 Bloom’s Category: 1. Remembering 1. Which of the following represents a correct ordering of the levels of complexity at which life is studied, from most simple to most complex? 2. Cell, tissue, organ, organism, population, community 3. Community, population, organism, organ, tissue, cell 4. Cell, organ, tissue, organism, population, community 5. Cell, tissue, organ, population, organism, community 6. Tissue, organ, cell, population, organism, community Answer: a Textbook Reference: 1.1 What Is Biology? Page: 7 Bloom’s Category: 1. Remembering 1. Yeasts can be used to study human cancer because yeasts and humans 2. share a genetic code. 3. are both prokaryotes. 4. have exactly the same genome. 5. have the same number of chromosomes. 6. None of the above; yeast cannot be used to study human cancer. Answer: a Textbook Reference: 1.1 What Is Biology? Page: 8 Bloom’s Category: 2. Understanding 1. A gene controlling human skin color was discovered in experiments with 2. fruit flies. 3. zebrafish. 4. roundworms. 5. mustard plants. 6. sea urchins. Answer: b Textbook Reference: 1.1 What Is Biology? Page: 8 Bloom’s Category: 1. Remembering 1. Earth is approximately _______ years old. 2. 4–5 billion 3. 4–5 trillion 4. 4–5 million 5. 6,000 6. 40–50 trillion Answer: a Textbook Reference: 1.2 How Is All Life on Earth Related? Page: 9 Bloom’s Category: 1. Remembering 1. Scientists estimate that for more than _______ years after cells originated, all organisms consisted of one cell. 2. 2,500 3. 250,000 4. 2.5 million 5. 2.5 billion 6. 2.5 trillion Answer: d Textbook Reference: 1.2 How Is All Life on Earth Related? Page: 9–10 Bloom’s Category: 1. Remembering 1. Metabolism is 2. the consumption of energy only. 3. the release of energy only. 4. all conversions of matter and energy taking place in an organism. 5. the production of heat by chemical reactions. 6. the exchange of nutrients and waste products with the environment. Answer: c Textbook Reference: 1.2 How Is All Life on Earth Related? Page: 10 Bloom’s Category: 1. Remembering 1. The initial accumulation of oxygen in the atmosphere was the result of photosynthesis from an organism most like modern 2. cyanobacteria. 3. algae. 4. mosses. 5. kelp. 6. eukaryotes. Answer: a Textbook Reference: 1.2 How Is All Life on Earth Related? Page: 10 Bloom’s Category: 1. Remembering [Show Less]