Biology, 02.01.2020 10:31 angellong94
Vwhat is the role of the beaver in its ecosystem? a) it is a foundation species and the main source of food for the natural predators of its ecosystem. b) it is a keystone species that modifies its natural environment by damming streams to form wetlands. c) it is a dominant species, as it has the greatest number of individuals among all the mammalian species of its ecosystem. d) it is an endangered species as it has the least number of individuals among all the mammalian species of its ecosystem.
Answers: 3
Biology, 22.06.2019 03:50
The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above
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Biology, 22.06.2019 06:30
Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
Answers: 1
Biology, 22.06.2019 09:30
In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity
Answers: 1
Biology, 22.06.2019 09:30
Archaebacteria use for movement. celia flagella pili cell walls
Answers: 2
Vwhat is the role of the beaver in its ecosystem? a) it is a foundation species and the main source...
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