Lipids contain more energy that carbohydrates because they contain more carbon to hydrogen bonds to release energy when broken.
<span>A macromolecule is a large molecule. There are four groups of macromolecules: carbohydrates, proteins, nucleic acids and lipids. Lipids consist of glycerol and fatty acids and are constructed from fats, oils, waxes, phospholipids and steroids. A lipid's function is to insulate the body and provide warmth in cold conditions. It can be concluded that a person with very little body fat gets very cold easily and a person with a lot of body fat gets very warm very quickly.
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Answer:
Third-degree burns destroy the epidermis and dermis. They may go into the innermost layer of skin, the subcutaneous tissue. The burn site may look white or blackened and charred.
Explanation:
The treatment of third-degree burns may require the process of skin grafting or the use of synthetic skin. Severe burns covering large parts of the body may need more intensive treatments such as intravenous (IV) antibiotics to prevent infection or IV fluids to replace fluids lost when skin was burned.
Answer:
Tt - 1/2
tt - 1/2
Explanation:
<em>A cross between a tall pea plant and a short pea plant that produces 43 tall and 47 short offpsring (almost 1:1) is most likely a cross involving a heterozygous tall individual and a homozygous short individual.</em>
Tt x tt
Offspring = Tt Tt tt tt (50% tall and 50% short)
If one of the tall offspring (Tt) is crossed with one of the short offspring (tt):
Tt x tt
Offspring = Tt Tt tt tt
Genotype ratio = 2Tt:2tt
Hence,
Tt = 1/2
tt = 1/2
Answer:
Regarding the genotype and phenotype of the original parents they are known by the name of parental classes. These parental classes have appeared of the genotype are classified as homozygous or heterozygous.
Explanation:
While the reciprocal classes are also the genotypes and phenotypes of the crosses. These reciprocal classes are personified if the crossing occurs between the homozygous alleles. This is due to the fact that the chromosomal part is exchanged in the two chromosomes, since the cross products are the same as the products that are formed in the parent classes, this occurs in a phenomenon known as homozygosity.
In the event that the crossover occurs in a heterozygous allelic tetrad, then an exchange between the different chromosomal parts will occur, resulting in recombinant alleles. In this particular case, the parenting classes cannot be the same. This phenomenon is known as heterozygosity.
Answer:
The correct statements are:
- Sensors in the brain detect a lack of oxygen.
- The muscles in his body need more energy and therefore more oxygen.
The amount of oxygen in air and atmospheric pressure decreases with increase in altitude.
So, when Jon hikes up the hill he faces two problems; lack of oxygen in the air and decrease in atmospheric pressure.
Decreased atmospheric pressure makes it difficult for the lungs to breathe in the air and lack of oxygen decrease the blood oxygen level.
In addition, physical activity like hiking increases the oxygen demand of the body.
Due to these factors the respiratory system struggles to meet the oxygen demand of the body. The brain detect the same and triggers the respiratory and circulatory system to work more in order to meet the oxygen demand.
It causes the shortness of breath or heavy breathing, high blood pressure, tiredness, dizziness etc.
