Ecosystems vary in their energy efficiency, but as a general rule, % of the energy available at one level is transferred to the next trophic level.

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?

Read the article and use the information to answer the following questions. active transport in active transport, molecules are moved across the cell membrane with the of neurons electrical impulses proteins. inhibitors 3 of 3 vity

Jayden is taking a test. he has to write why scientists support the theory that life began near hydrothermal vents in the ocean. which point should he include in his answer? a. hydrothermal vents were closest to ocean surface, and therefore could receive oxygen. b. oceans were dry and only had water near the hydrothermal vents in the earlier ages. c. even today, all life forms are first born near hydrothermal vents and they later migrate to land. d. fossils of archeabacteria, which are early common ancestors, were found near hydrothermal vents.