<span>All of these products and services are targeted towards the special needs of individuals who are later along in life. As such, these advertisements represent a major trend - the aging of the population. In the U.S. and elsewhere, as the "Baby Boomer" generation ages and retires, this trend is shaping the fabric of society and policy.</span>
Answer:
Mitochondrial biogenesis and mitophagy are two pathways that regulate mitochondrial content and metabolism preserving homeostasis. The tight regulation between these opposing processes is essential for cellular adaptation in response to cellular metabolic state, stress and other intracellular or environmental signals.
Explanation:
<span>a. They have homologous structures because they have a common ancestor.
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Answer: Denaturing
Explanation: Enzymes are made of amino acids that are linked by bonds, amongst those bonds are hydrogen bonds that are very weak. High temperatures and low pH(acidity) breaks those bonds changing the molecular conformation of the enzymes. That way they denature and loss the ability to perform their functions. High temperatures and acidity alter the structure of their active site preventing the substrate from binding to them. While high temperatures denatures enzymes, low temperature renders them inactive.
