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Bio Ch 3 Unit Test
Biology Chapter 3 Unit Test
| Question | Answer |
|---|---|
| Plants are____. | Primary Producers |
| Which of the following is not a basic method used by ecologists to study the living world. | Animal Training |
| The lowest level of environmental complexity that includes living and nonliving factors is the____. | Ecosystem |
| The simplest grouping of more than one kind of organism in the biosphere is_____. | Community |
| The branch of biology dealing with interactions among organisms and between organisms and their environment is called_____. | Ecology |
| Which of the following descriptions about the organization of an ecosystem is correct. | Species make up populations which make up communities. |
| The algae at the beginning of the food chain in figure 3.1 are_____. | Primary Producers |
| How do most primary producers make their own food? | Use light energy to make carbohydrates. |
| Compared to land the open oceans____. | Nutrient Poor Environments |
| What is a term for each step in the transfer of energy and matter within a food web. | Trophic Level |
| In what way are herbivores and carnivores alike? | They both contain energy by consuming organisms |
| The total amount of living tissue within a given trophic level is called the____. | Biomass |
| What animals eat both producers and consumers? | Omnivores |
| Which part of the water cycle is a biological process? | Transpiration |
| Carbons cycle through the biosphere and through all of the following except___. | Transpiration |
| The repeated movement of water between earth’s surface and the atmosphere is called____. | Water Cycle |
| A bird stalks, kills, then eats an insect. Based on its behavior, which pair of ecological terms describe the bird. | Carnivore Consumer |
| What are the three kinds of ecological pyramids? | Energy, Biomass, and Number |
| Only 10% of the energy stored in an organism can be passed onto the next trophic level. Of the remaining energy some is used for the organism life process and the rest____. | goes out as heat |
| The word that means the same thing as consumer is___. | Heterotroph |
| Matter can recycle through the biosphere because____. | biological system do not use up matter they transform it |
| Nitrogen fixation is carried out primarily by_____. | Bacteria |
| What is at the base of all ecological pyramids? | Producers |
| Which is an example about how biotic and abiotic factors interact? | tree roots split apart rocks in the ground |
| Each of the following is an abiotic factor in the environment except? | Plant Life |
| Why can't the producers in some ecosystems make an unlimited supply of organic material? | One or more nutrient are in short supply. |
| Because of biogeochemical cycling____. | nutrient are circulated through the biosphere |
| Organisms need nutrients in order to____. | (carry out the essential life functions |
| Animals get the most of the nitrogen they need____. | by consuming plants and other animals |
| Figure: which of the following is a food chain in the food web shown in figure 3.4? | The food chain is in an ongoing cycle. |
| Animals that feed on plants are called____. | Consumers |
| A lake that is protected from receiving runoff from a cultivated field is more likely to remain more_____. | Healthy Ecosystem |
| In an ecological pyramid the biomass of living things_____at each higher level. | Decreases |
| Scientists classify nitrogen, carbon, phosphorus, and water cycles as____. | biogeochemical cycles |
| _____capture energy from sunlight or chemicals to produce food. | Autotrophs |
| The use of radio tags, satellites, and microscopes are all techniques implore in the basic ecological research method of____. | Observing |
| In figure 3.1 small fishes, squid, and sharks are_____but zooplankton are not. | Predators |
| In a four level energy pyramid if the first level contains 2,000 cal of energy the 3 level will contain approximately____cal. | 20 |
| Suppose extra nitrogen were added to the ecosystem in which the organism in figure 3.1 lives. The____population would increase immediately. | Algae |
| ______is important for ecosystems because it is used by plants during photosynthesis. | Carbon dioxide |
Created by:
P.V.A.