Which statement about photosynthesis is correct? a Plants get the energy they need for photosynthesis from soil. b Plants get th
e energy they need for photosynthesis from sunlight. c Plants get the energy they need for photosynthesis from water. d Plants do not require energy to perform photosynthesis.
A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction.
