Every cell contains certain structures that perform specialized functions for the cell. what are these structures called? a. organelles b. tissues c. organs d. cells

List two modern organisms that have pentameral symmetry

Name the organs of humanelemintary canal.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.