Answer:
Gastrulation.
Explanation:
The embryonic development occurs through the different developmental stages like cleavage, morula, blastula and so on. The formation of the germ layers occur in the gastrulation period.
The primitive streak is the structure that develops during the early stages of the gastrulation. As the embryo becomes asymmetric., the cells moves from their initial position and leads to the formation of primitive streak in the gastrulation phase.
Thus, the correct answer is option (C).
Explanation:
i believe it is a or b because i think it just makes sense
Answer:
inattentional blindness
Explanation: The statement of question is the definition
Valves are like flaps or lids that are used to transport blood from the atria to the ventricles. They act as inlets and outlets of blood.
Explanation:
The atrioventricular valves are located Left and right that are in the middle of atria and ventricle on both sides of the heart while two semilunar valves separate the right and left ventricles from the pulmonary valve and aortic valve.
The Atrioventricular valves are the mitral valve and the tricuspid valve. Mitral valve is in the left side and tricuspid valve is in the right. they both are separated by the atrium and ventricle
The two semilunar valves are the pulmonary valve and aortic valve. the pulmonary valve is on the right side separated by the right ventricle and pulmonary artery. The aortic valve is on the left and is separated by the left ventricle and aorta.
