The question is incomplete as it does not have the options which are:
A. the movement of swallowed food into the trachea rather than into the esophagus
B. Too rapid emptying from the stomach into the small intestine
C. too rapid emptying of the small intestine into the large intestine
D. regurgitation of acidic stomach contents into the esophagus, commonly called "heartburn"
E. the control of defecation
Answer:
Option-D
Explanation:
The oesophagus is a tube-like structure made of smooth muscle which connects the throat of the humans to the stomach.
At the lower side of the oesophagus, a sphincter is formed by the circular shaped muscle which when constricted does not allow the backflow of the substances from the stomach to the oesophagus.
If the sphincter in the esophagus fails to close, then the acidic content present in the stomach along with the food will flow back to the oesophagus and since the esophagus wall is not prepared for the acidic nature therefore the acidic content will cause the irritation and inflammation in the esophagus, a condition called heartburn.
Thus, Option-D is correct.
Answer:
Macromolecules provide energy to our body.
Explanation:
Fats, carbohydrates and proteins are needed for a healthy diet because these macromolecules provide energy to our body. Fats are the macromolecules that can be broken down into micromolecule i.e. fatty acids, carbohydrates are broken down into glucose molecule and proteins are broken down into amino acids which can be absorbed by our body for the generation of ATP molecules. Beef, chicken, lamb, livers, meat extracts, mackerel, anchovies, and sardines are the food sources that has high amount of nucleic acid.
A unsupported claim.
An unsupported claim is basically a claim, that has been said to be true, but has no way of being verified, as said in the question.
Hope it helped,
BioTeacher101
Answer:
In reproductive or sexual cells
Explanation:
There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. These germ cells suffer both mitosis (to form more sexual cells) and meiosis (giving place to haploid gametes: sperm and egg cells, through the gametogenesis process). Both somatic cells and germinal cells will end their cycle becoming two daughter cells with the same genetic dotation.
Gametes from each parent will merge in the process of fecundation, during which a new diploid cell called a zygote emerges through fertilization. The zygote is a complete cell from the structural point of view that suffers successive mitosis to form the new organism.
Any cell in the organism might suffer mutation.
- If the mutation occurs in the somatic cells, it will produce a population of identical mutated cells in that organism. However, this mutation in these cells is not inheritable. By definition, mutations in somatic cells do not inherit because these cells do not produce progeny.
- If the mutation occurs in the germinal line, in the germ cells, or the sexual cells, this <u>mutation will pass to the offspring</u>. The organism with mutated germinal cells might express a normal phenotype, but this mutation will be detected in the progeny.
Answer:
Biological diversity, or biodiversity, is the term given to describe the variety of life on Earth.
Explanation:
