5 Written questions
5 Matching questions
- reproductive isolation
- a Organisms that consume waste products and dead organic material and constitute part of the food web, which also includes producers and consumers. Also called saprophytes. Decomposers liberate inorganic elements such as nitrogen and carbon and allow those elements to move back into their respective chemical cycles. Examples of decomposers are bacteria and fungi.
- b The inability of individuals within a species to create offspring with members of any other species. The mark of a species is its reproductive isolation from all other species.
- c The rolling motion of smooth muscle that moves food along the alimentary canal. Includes the passage from the esophagus to the stomach, the churning action of the stomach, and the passage through the small intestine.
- d A form of endocytosis in which a cell ingests a solid particle.
- e Connective tissue between bones and muscles.
5 Multiple choice questions
- The amount of living matter in a given ecosystem. Because only 10 percent of energy is transferred between trophic levels, the biomass of lower trophic levels is greater than the biomass of subsequent trophic levels: biomass of producers > biomass of primary consumers > biomass of secondary consumers > biomass of tertiary consumers.
- The process in which haploid sperm cells form through meiotic division.
- The most shallow zone in a marine habitat. Periodically dry or wet with the changing tides. Algae, sponges, mollusks, starfish, and crabs inhabit this zone. Also called the littoral zone.
- Organisms that can only get the organic molecules and energy necessary for life through the consumption of other organic matter. In the food web, all consumers and decomposers are heterotrophs. Heterotrophs can be herbivores, carnivores, or omnivores.
- The transport or natural drift of molecules traveling from an area of higher concentration to an area of lower concentration. Diffusion does not require outside energy from the cell.
5 True/False questions
dicot → A particular geographic area with a common climate and characteristic plant and animal life. There are six major terrestrial biomes and two aquatic biomes. The six terrestrial biomes are tropical rain forest, savanna, desert, temperate deciduous forest, taiga, and tundra. The two aquatic biomes are marine and freshwater. Each biome is characterized by specific climax communities.
ganglion → A simple cluster of nerve cells that acts as a coordinating center. In more sophisticated organisms, ganglia evolved into a brain and spinal cord.
minerals → An emulsifier of fats secreted by the liver and stored in the gallbladder for release in the small intestine.
carbon → The central element of life. Carbon has the ability to form bonds with up to four other elements or molecules at the same time.
competition → An interior skeleton found in vertebrates made of bone and cartilage.