The answer to the question is letter A. perihelion.
>The perihelion<span> is the point in the </span>orbit<span> of a </span>planet<span>,or a body</span><span> where it is nearest to its point of orbit, generally a star. It's the opposite of </span>aphelion<span>-- the point in the orbit where the celestial body is farthest from its point of orbit.
>></span>The perihelion and aphelion are the nearest and farthest points <span>of a body's direct </span>orbit<span> around the </span>Sun<span>.</span>
Answer:
E. are found in nitrogen-fixing cyanobacteria AND are used to protect nitrogenase.
Explanation:
Heterocysts are specialized cellular compartments found in nitrogen fixing cyanobacteria. They provide the ideal anaerobic environment for nitrogen fixation since nitrogenase enzyme cant work in presence of oxygen. Hence, in a cyanobacteria both the oxygen requiring photosynthesis process and the oxygen sensitive nitrogen fixation process takes place simultaneously.
Heterocysts have an additional cell wall made of glycolipid that provides a hydrophobic barrier to oxygen. They are involved in production of nitrogenase and other proteins that are required for nitrogen fixation. They also degrade photosystem II which is responsible for producing oxygen and produce proteins which remove any remaining oxygen.
Codons are three base sequences that specify the addition of a single amino acid. How do eukaryotic and prokaryotic codons compare?<span>
Answer: Codons are a nearly universal language among all organisms</span>
Answer: because of larva
Explanation: Larva. After three days, the egg hatches into a worm-like form called a larva. The worker bees feed the larva royal jelly for the first few days and then switch to honey and pollen. An exception to this is a future queen: this larva continues its diet of royal jelly.
