<span>There are three major groups of mammals, categorized on the basis of their method of reproduction. Monotremes lay eggs to have children instead of having the mother bear them. The second type of mammal is the marsupial, which are non-placental animals who carry their young in their pouches. Eutherians are the third group who are placental mammals.</span>
Answer:
Pylorus
Explanation:
The stomach is a J-shaped organ which is a part of the digestive system. The digestive system on one end is attached to the oesophagus and on the end to the small intestine.
The pylorus structure of the stomach is composed of thick muscles which help to mix or agitating the food in the stomach and controls the movement of the food to the duodenum which is the first part of the small intestine. The movement is controlled by the ring of muscles in the pylorus called pyloric sphincter.
Thus, Pylorus is the correct answer.
Producción de leche, cabello, temperatura corporal constante y sistemas circulatorios y respiratorios altamente desarrollados.
Answer: MolluscaMarissa finds an unknown organism belonging to phylum Mollusca because as she described it, it has bilateral symmetry, a non-gelatinous, non-segmented body that is bigger than 0.5 mm and has a shell. Examples of animals under Phylum Mollusca are clams, muscles, snail, squid, octopus.
<span>DNA is said to be semi-conservative because each helix that is created contains one strand from the helix from which it was copied, which actually means that half of the original DNA is conserved. </span>
