Answer:
Methane (CH 4), carbon monoxide, and black carbon are all present in the atmosphere
Explanation:
The answer is FALSE. A
lipid is what consists of glycerol and 3 fatty acids. Waxes are organic
compounds that characteristically consist of long alkyl chains. They may also
include various functional groups such as fatty acids, aromatics, amides,
ketones, and aldehydes. Synthetic waxes are often long-chain hydrocarbons
(alkanes or paraffin) that lack
functional groups.
Lipids<span> are all similar in that they are (at least in part) hydrophobic. There are three important families of </span>lipids<span>: fats, phospholipids and steroids. Fats are large molecules made of two types of molecules, glycerol and some type of fatty acid.</span>
Answer:
In heterozygotic individuals, the gene for sickle cell anemia is protective against malaria.
Explanation:
Through the same mechanism that the mutation associated with sickle cell anemia produces the disease (altered hemoglobin structure), having a single copy of the mutation (that is, being heterozygotic) provides protection against malaria. This is believed to be due to the altered structure causing difficulty for the malaria parasite when it attempts to enter red blood cells as part of its life cycle.
Today, there are medications to successfully treat malaria, but it still killed 627,000 people in 2020. This represents a significant evolutionary pressure for genes that would prevent serious malarial illnesses. As malaria was and still is common in African regions, the result was a higher prevalence of sickle cell anemia in those of African descent.
If an atom is unstable it can become stable by the gain or loss of electrons.