A scientist is studying how chemical messages are transferred between cells of a developing embryo. In a research journal, the scientist draws a diagram to illustrate how the embryonic cells at the bottom of the early embryo are releasing chemicals to nearby cells to elicit protein production in the activated neighboring cells.

DIAGRAM IS ATTACHED

What is the primary purpose of the signaling molecule?

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide