<span>A. A nucleic acid has alternating base pairs. A protein has alternating peptides.</span>
Is the first one a true or false question?
Answer:
1) metals; left
2)sodium: alkali metals calcium: alkaline earth
Explanation:
A food web describes the flow<span> of </span>energy<span> and nutrients </span>through<span> an ecosystem, ... Organisms </span>can<span> be organized into trophic levels: primary producer, primary ... In both </span>food webs<span> and </span>food chains<span>, arrows point from an organism that is </span>consumed<span> to ... of trophic </span>energy<span> transfers, the </span>amount of energy<span>remaining in the </span>food chain<span> ...</span>
Answer:
heart rate to decrease
Explanation:
Please mark me as brainliest
