Answer:
B. Gravel has more porosity than sand
Explanation:
Porosity is the gap between stuff. Water would go through gravel easier than sand. Definition of Porosity is -(of a rock or other material) having minute spaces or holes through which liquid or air may pass.
<span>When someone is performing a very routine phlebotomy, which is the act of inserting a needle in a vein to draw blood, the most commonly used needle are needles with gauges of 20 or 21.</span>
He tricks persuades him by giving home candy
Answer:
Structurally, proteins are different from carbohydrates because all proteins contain nitrogen (option C).
Explanation:
The basis of the chemical composition of proteins is carbon, hydrogen, oxygen and nitrogen, so all proteins have nitrogen in their structure. Some proteins also possess phosphorus and sulfur atoms, among others.
Proteins are biomolecules formed by the union of multiple amino acids through carboxyl-amino bonds, called petidic bonds. Their content of nitrogen and other atoms in their structure is what makes them different from carbohydrates.
The other options are not possible because:
- <em>Only some proteins contain </em><u><em>iron</em></u><em> in their composition.</em>
- <u><em>Potassium and helium</em></u><em> are not part of the protein structure.
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Answer:
Human reproduction is any form of sexual reproduction resulting in human fertilization. It typically involves sexual intercourse between a man and a woman
solid liquid gas
Explanation: