Which one of these exhibits dorsal nerve cord at some stage of its development

Sedimentary rocks located under the ocean may contain what commercial products

How does light interact with leaves to begin the process of photosynthesis? pigment molecules reflect light energy. pigment molecules absorb light energy. oxygen molecules absorb light energy. oxygen molecules reflect light energy.

Cells in organisms need food, air, and waste removal. how are these needs met? a. cells get their food from the air and sunlight around them. b. organs and tissues perform these functions for the cells. c. cells share their waste with other cells. d. each cell must specialize in all of these functions.