Answer:
Lipids are hydrophobic because they do not mix with water. Lipids are made of long chains of carbon and hydrogen. ... The partial charges on the water molecule cannot interact with the neutral lipid molecule and thus water and lipids do not mix.
the skin covering the human body consists of 2 layers.
Answer:
C. Properties that can change the chemical nature of matter.
Explanation:
Chemical properties is a characteristic of a chemical substance observed when it undergoes a chemical reaction on seeing its precipitation. On knowing the chemical properties of a substance it aids in separation, purification and classification of a compound. some examples of chemical properties are as follows:
1. Toxicity
2. Inflammability
3. Reaction with other chemicals
4. Oxidation
<u>Answer</u>:
"It increases the mutation rate" is an advantage of sexual reproduction
<u>Explanation</u>:
The basic thing of evolution is fundamental, as it helps in generation of genetic variation on which the selection can act. Sexual reproduction leads to genetic diversity, and this genetic diversity leads to increase the mutation rate. Genetic diversity occurs because of two various cells which are combining together and biological assortment which happens at the time of cell division. Neutral genetic diversity in the population leads to high mutation rate.
<span>vaccine
The wording given is pretty much the exact definition of a vaccine. The key to how a vaccine works is that it provides to the immune system, samples of the surface proteins of the infectious materials. With those samples available, the immune system is able to produce antibodies that react to those proteins.</span>
