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Science Chapter 17
Terms in this set (14)
At what point of a food web would you expect the most amount of energy to be available?
The lowest level; the producer organisms.
which organism on this food web is a producer? a hawk, grass, frog, or an insect?
which of these organisms are in competition and why? the snake, hawk, rabbit, grass, or the frog?
The snake and hawk because they both eat the same things; the rabbit and the frog.
What is a triangle food diagram called?
an ecological pyramid
Each level of a ecological pyramid is called a(n) ______ ______.
The organisms in the second level are _________.
If 1000 energy units were available to the photosynthetic organisms, how many units of energy would be available to those in the third level?
which level would you expect the greatest biomass?
The lowest level
The black and white markings of skunks are an example of __________.
which correctly represents the nature of energy and matter in an ecosystem?
only matter is cyclic
The hookworm Necator americanus affects some humans and obtains nutrition from their small intestines. in this example, a deer would be the ____.
The sea slug gives off poisonous chemicals to thwart predators. many harmless flatworms have markings on their backs that look similar to those found on sea slugs. this is an example of _____.
as a rhinoceroses walks around the Aferica savanna, insects fly away to keep from being trampled. Cattle Egrets are birds that follow around the rhinos as they travel. they catch and eat the insects as they begin to fly away, but the egrets have no effect on the rinos. What is the relationship between the cattle egrets and the rhinosceroses?
What is the relationship between the cattle egrets and the insects?
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