How many miles is the troposphere (in miles)?
5 miles
6 miles
7 miles
8 mile...
Biology, 03.12.2020 01:50 apreston2882
How many miles is the troposphere (in miles)?
5 miles
6 miles
7 miles
8 miles
Answers: 2
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Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
Answers: 1
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Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere
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The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell
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Biology, 22.06.2019 15:30
Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?
Answers: 2
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