Answer: lf an organism produces many offspring, but none of them reach maturity, then it has low fitness, because its offspring will not pass on their traits to the next generation.
Aden- comes from the greek work adenas which means gland. I suppose this compound was first isolated from glands. The -ine part is just a chemical name ending for nucleic acids. Hope this helps
Easily D
without sunlight you get no photosynthesis, so no plants
plankton is the bottom of the food chain in the ocean so without it the entire food chain collapses from the bottom up. so yeah its D by far
Emotional expression, memory and motivation