Answer: observe the feeding behaviors of gulls
Answer:
They are the alkali metals, alkaline earth metals, transition metals, other metals, metalloids, non-metals, halogens, noble gases and rare earth elements.
In biology, a terminal electron acceptor<span> is a compound that receives or accepts an </span>electron<span> during cellular respiration or photosynthesis. All organisms obtain energy by </span>transferring electrons<span> from an </span>electron<span> donor to an </span><span>electron acceptor</span>