Which group of living things can move energy from consumers at the top of an energy pyramid back to producers at the bottom? *

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates