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Questions and Answers
An organism that gets its energy from eating another organism is called a ______
consumer
A producer is an organism that makes food for itself through the process of ______
photosynthesis
A special type of consumer that hunts and kills its food, or prey, is called a ______
predator
In order to be a predator, an animal must hunt and kill its food, or ______
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A parasite/host relationship involves the parasite absorbing nutrients from the ______
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Parasites are common in all ecosystems around the world, but they thrive in warmer conditions. Parasites are not just problems for people. They exist naturally in ecosystems, infecting many different species of animals. Even plants can be infected by ______. Many different types of organisms can be ______, including bacteria, protists, plants, and animals. A parasite species may be specific to a single host species or may infect a group of related organisms. For example, hookworms have evolved hook-like structures on their mouths that allow the worms to attach firmly to mammalian intestinal walls. Hookworms infect a variety of mammals, taking nutrients directly from the host. Another very common parasite in all types of environments is the tapeworm. The host, which could be a fish in freshwater and ocean ecosystems and a cow in terrestrial ecosystems, gets infected when it swallows the tapeworm eggs. The eggs pass through the digestive tract and implant themselves into the intestine wall of the animal.
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