Answer:
Hydrogen bonds make water molecules spread out when they freeze. This makes ice less dense than water and allows ice to float. If ice did not float then oceans and lakes would freeze from the bottom up, killing marine life by trapping organisms in the ice. When ice floats, it insulates the water below, keeping it at around 4 degrees C or 40F, which does not freeze and allows fish to survive the winter.
Explanation:
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<span>phosphate heads of phospholipid</span>
Answer:
Explanation:
The functional unit of the kidney responsible for excretion is the nephron . ... capillaries; Arcuate vein; Arcuate artery; Afferent arteriole; Juxtaglomerular apparatus ... If urine contains albumin or blood cells , it indicates that the glomeruli have been damaged. Binding to plasma proteins will influence urinary excretion .
About 11 to 15 days after conception the zygote attach to the uterine wall
Answer:
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Explanation:
The building blocks of Enzymes are Proteins which contains long chains of Amino acids linked by peptide bonds. This specific order of amino acids in proteins is encoded by the DNA sequence of the corresponding gene.
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