Explanation:
Without enough water, you can sweat away too much fluid. You can also lose sodium and potassium that your body needs. It's especially true in the heat. When it happens, you may be thirsty, pee less than usual, and your mouth might dry out.
Answer:
False
Explanation:
Facultative anaerobes are organisms that can grow in both the presence or absence of oxygen.
Organism that suffer a poisonous reaction or that can't live in the presence of oxygen are called obligate anaerobes.
Intestinal muscles and heart muscles are involuntary muscles,hand muscles and neck muscles are voluntary muscles
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.
