2. What is the relationship between mutation, natural selection and adaptation?

Chemistry

1 answer:

harkovskaia [24]3 years ago

7 0

Answer:

Explanation:

Natural selection is where positive traits survive more, allowing those to become more common. Mutation is where radioactivity changes genes in a random way. Natural selection allows positive mutation to become more common. Adaptation is where natural selection works for a species specifically more a new habitat.

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stepladder [879]

Answer:

Magnesium

Zinc

Iron

Copper

Explanation:

The given elements are:

Magnesium, copper, iron and zinc

We are to put them in the order from the least reactive to the most reactive of all.

To solve this problem, we simply use the activity series of metals to arrange the elements.

The activity series arranges metals from the most reactive to the least reactive. The more reactive metals displaces the lesser one from solutions.

So;

Magnesium

Zinc

Iron

Copper

3 0

3 years ago

What is the recommended PH levels for the human body?

RoseWind [281]

It should be 7.3 to 7.4

4 0

3 years ago

What carboxylic acid would be formed if the malonic ester synthesis (alkylation of diethyl malonate followed by hydrolysis with

uranmaximum [27]

Answer:

cyclohexilic acid

Explanation:

The malonic ester synthesis is often used to form different types of carboxilic acid. In this case, we have excess of base, so we can expect a ring formed in the molecule.

In the first step, the base substract the more acidic hydrogen of the ester. In the next step we have the ester reacting with the dibromopentane. Then, in the next step, the excess of base will substract again the acidic hydrogen remaining of the carbon, and then, will promove a Sn2 reaction with the bromine in the pentane (That it was previously attached to the molecule). In this step, a ring id formed. Then, the hydrolisis with acid, will form carboxilic acid in both sides of the molecule, and finally the decarboxilation in heat will separate the molecule and formed the cyclohexilic acid.

The picture below shows the mechanism