Light is the energy source in Photosynthesis!
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Euglena is a large genus of unicellular protists: they have both plant and animal characteristics. All live in water, and move by means of a flagellum. This is an animal characteristic. Most have chloroplasts, which are characteristic of algae and plants.
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Cells cannot survive on their own. They need energy to stay alive. They need the energy to perform functions such as growth, maintaining balance, repair, reproduction, movement, and defense.
Explanation:
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i think that the white mouse is a mutation. can you provide the answer choices.
Explanation:
The four steps of muscle contraction are EXCITATION, COUPLING, CONTRACTION AND RELAXATION.
Muscle excitation involves the generation of action potential in the muscle cell membrane as a result of stimulation. Coupling refers to the linking of the action potential to the myofilament in readiness for contraction. During contraction, the muscle fibers experience tension and usually become shorten. Relaxation refers to the resting stage of the muscle fiber.