Answer:
Design more studies testing the effect of duration and intensity of exercise on cholesterol levels in different age groups.
Explanation:
B, burrowing action of earthworm
Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain. The chemical backbones of the double helix are made up of sugar and phosphate molecules that are connected by chemicals bonds, known as sugar phosphate backbones.
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1. The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes. The majority of Earth's volcanoes and earthquakes take place along the Ring of Fire.
2. Crustal recycling is a tectonic process by which surface material from the lithosphere is recycled into the mantle by subduction erosion or delamination
3. Tectonic plate movement can create another supercontinent like Pangea if the plates move continents to the point of meeting together.
The answer is Tyrosine. Conditionally essential amino acids is when non essentials amino acid becomes essential. In Phenylketonuria Tyrosine becomes a conditionally essential amino acid that must be provided in the diet. Phenylalanine accumulates and fails to convert to tyrosine during this condition.