Answer:
The coronavirus speads mainly from person to person. This can happen between people who are in close contact with one another. Droplets that are produced when a infected person coughs or sneezes may land in the mouths or noses of people who are nearby, or possibly be inhaled into their lungs
(See figure below, where meiosis I begins with a diploid (2n = 4<span>) cell and ends with </span>two<span> haploid (n = </span>2<span>) cells.) In humans (2n = </span>46<span>), who have 23 pairs of chromosomes, the number of chromosomes is reduced by half at the end of meiosis I (n = 23).</span>
The correct answer is muscularis externa.
The muscularis externa refers to a section of muscle in various organs in the vertebrate body, adjacent to the submucosa. It is accountable for the gut movement known as peristalsis.
In comparison to the majority of the remainder of the digestive tract, the muscularis externa of the upper section of the esophagus comprises of striated muscle. It is accountable for peristaltic movement and segmental contractions in the GI tract.
These muscles make the movement of food and churn in combination with the digestive enzymes down the GI tract. The muscularis externa comprises of a longitudinal outer muscular layer and an inner circular layer.
Substances formed by joining smaller molecules together are called macromolecules. Examples for macromolecules are: carbohydrates, lipids, nucleic acids, and proteins. They are large biological molecules necessary for life: they power our cells and build our bodies.
There is no question that octopus seem to like being pets but they allow us to interact with them and study them
