Biology, 19.08.2019 17:00, stephaniero6
What do phytoplankton do? a) produce toxins that can be lethal to humans and fish who ingest it. b)provide food for a large range of marine life and supply much of earth's oxygen. c)play a role in recycling organic matter in water. d)sweep food into oral grooves and down into a food vacuole.
Answers: 2
Biology, 21.06.2019 19:30, milhai0627a
What is a universal way that predation benefits the predator? predation increases mate availability. predation in defense of space. the predator gets the energy it needs to survive. the predator keeps parasites from hurting the species.
Answers: 1
Biology, 22.06.2019 08:50, natalie407888
Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity
Answers: 1
Biology, 22.06.2019 13:20, crazymadhatter0
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
What do phytoplankton do? a) produce toxins that can be lethal to humans and fish who ingest it. b)...
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