The stem is most likely made up of vascular tissues. The main vessels present on vascular tissue are the xylem and phloem. These two tissues work as pipes for the transport of water and nutrients inside the stem. Xylem transports water and some nutrients from the roots. The Phloem <span>transports the soluble organic compounds that were produced during </span>photosynthesis from the leaves, and in the case of the cactus photosynthesis happens on the actual stem,<span> to the rest of the plant.</span>
Answer:
The answer is Nucleic acid. Your body uses carbohydrates, lipids and proteins for energy. The only biological macromolecule not used for energy is nucleic acid.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Answer:
sphincter
Explanation:
circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.
To answer this we need to remember how proteins are structured, the primary structure is just the polypeptide chain, secondary there is a certain folding level alpha-helix and folded beta-sheet, then is the tertiary structure that comes from a single polypeptide chain and is formed by secondary structures, finally, there is the quaternary structure where several polypeptide chains are involved as well as tertiary structures are folded together. Therefore taking this into consideration we can say that the correct answer is option two.
The body temperature of the mammal will be higher than that of the reptile. this is because the mammal body temperature does not depend on its environmental temperature while a reptile does not have a stable body temperature and depend on the temperature of its environment.
