The first step in DNA replication is that DNA helicase break the<span> hydrogen bonds between complementary bases of parent.</span>
Answer:
Explanation:
When you exhale, the diaphragm relaxes and the air is pushed out of lungs. It also has some nonrespiratory functions as well. The diaphragm increases abdominal pressure to help the body get rid of vomit, urine, and feces. It also places pressure on the esophagus to prevent acid reflux.
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Answer: Although produced in both males and females, by the mid-teens, estradiol production in females is 8 times greater than it was before puberty, while testosterone production in males is 20 times greater than it was before puberty.
Explanation:
Puberty is the transition phase in which somatic growth and sexual development are completed, with the consequent acquisition of reproductive capacity. Estradiol is the most potent and abundant estrogen, it is secreted by the ovarian follicle granulosa cells and also by the corpus luteum. testosterone is the hormone responsible for the emergence of secondary sexual characteristics, sperm production and increased sexual drive, aggression, height growth and physical strength, among others. There are many differences in body composition between both sexes, and those differences are also present in the hormones concentration. While estradiol is 8 times greater after puberty in females, this number is 20 times greatern in males, when we are talking about testosterone
Answer:
Amino acids are the building blocks of life and are encoded by DNA. Enzymes and structural proteins are made of amino acids, and are used as precursors for other important biomolecules in the body. In addition, many different industries ranging from pharmaceuticals to the food industry rely on amino acids.
Answer:
Flatworms are beings that do not have a heart, veins, arteries, capillaries, hemolymph, or some type of circulatory fluid. Their circulation occurs between cells or intercellularly and they are responsible for transporting substances by diffusion from cell to cell.
Explanation:
Flatworms are considered multicellular eukaryotic organisms. This implies that in their cells they have a cellular nucleus, in which the DNA is contained, structuring the chromosomes. Likewise, they are made up of several types of cells, each one specialized in a specific function. They lack a structured circulatory system as such. Because of this they do not have specialized structures such as a heart or blood vessels, however, the circulation of certain substances is established between their cells. This is done thanks to the diffusion process. Substances pass from one cell to another through this process.This does not apply to all flatworms, since in some species of bog and digenae there is a certain organization and some very small conducting vessels known as the endolymphatic system, the which forms a kind of plexus in the parenchyma.It should also be noted that some species do not even have a digestive system, being the digestive tract the one in charge of digestive functions and the distribution of the nutrients they receive.
