If photosynthesis produces cellular energy (atp) from sunlight, why do plant cells also need to perform cellular respiration, a process that produces atp from sugar

Use the distance formula to determine weather each pair of segments have the same length

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

Nucleus has two lobes; contains granules of lysosomal enzymes; functions in attacking parasitic worms and plays complex roles in inflammatory diseases like allergies and asthma. what blood cells are described?