Answer:
Variation in gene leads to anatomical difference in the closely related species
Explanation:
Though some organisms are morphologically very different from each other, yet they can belong to same species group. It is because of shared genetic framework with minute changes.
For example – Human and chimpanzees have similar genes and share about 99 percent their genes with each other.
The variation in 1 % gene has led to visible anatomical differences such as varying lengths of arms, jaw structure and size etc.
The same is the case with six living species of mammals and their close relationship with dugongs and elephants
Ethylene gas in biology, is known as a hormone. Hormones, as they do in humans, cause growth. Producers of produce use a process that they "gas blast" the fruit or veggies to have them mature faster so they can go to resale faster. Produce that is exposed to ethylene gas isn't as flavorful, but they do make a quick alternative to slow ripening.
<span>Ethylene gas does not take away flavor, but actually adds flavor by breaking down starch into sugar using the enzyme alpha-amylase. This is the reason why produce markets use ethylene to ripen fruit when they arrive so the fruit can obtain their flavor when they hit the shelves. If ripening occurs naturally, fruits would sit on the shelf longer, and in the business world that hurts the inventory turnover rate. Ethylene causes fruit to RIPEN faster, spoiling occurs at the end of the ripening process.</span>
The answer is y is equal to 4