put one hand under the base and hold arm with your other hand.
The answer is pulmonary
valve. The pulmonary valve is found between the right ventricle and the pulmonary artery. The valve is a semi-lunar valve that opens when the pressure in the right ventricle is higher than that in the pulmonary artery (because the ventricle is filled with blood). When the ventricle pumps blood into the pulmonary artery, the pressure in the artery rises while that in the ventricle lowers. This closes the pulmonary valve preventing the backflow of blood into the right ventricle. Pulmonary artery takes blood to the lungs for oxygenation.
Answer:
There are 4 types of chromosome
1.Metacentric
2. Submetacentric
3.Acrocentric
4.Telocentric
Explanation:
Chromosome are found with in the nucleus of most living cells and consist of DNA that is tightly wound into threads like structure.
Chromosome can also be classified depending on their length, number,and arm size.
Photosynthesis produces oxygen and cellular respiration give carbon dioxide
