<span>Oxygen travels to insect tissues through tiny openings in the body walls called spiracles, and then through tiny blind-ended, air-filled tubes called tracheae. Therefore, insects obtain oxygen through the spracles, which are small abdominal holes that lead into traecheal tubes called tracheae that branch into smaller tubes called tracheoles. From there, oxygen diffuses into body cells.</span>
Answer:
No
Explanation:
Most bacteria and archaea don't use oxygen to produce energy, and live an oxygen-free (anaerobic) existence. Some archaea produce methane as a by-product of their energy production, and are called methanogens.
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Exons, because they are the only coding regions in the DNA.
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Answer:
me and u
Explanation:
a and b me but and you like me
A) the water particles must have lost energy. As things get warmer, the particles have more kinetic energy and begin to move faster.
