Biology, 18.11.2019 04:31 jacksonthelma82
Because humans cannot produce their own food and must eat, what type of organisms are they?
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Biology, 21.06.2019 17:00
How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey
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Biology, 21.06.2019 20:00
Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium
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Biology, 22.06.2019 03:00
What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.
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Biology, 22.06.2019 05:50
The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes
Answers: 2
Because humans cannot produce their own food and must eat, what type of organisms are they?...
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