After a <u>problem</u> has been identified, it is important to do <u>background</u><u> </u><u>research</u> to learn as much as possible about the issue. This will lead to more complete sets of <u>solutions</u> and <u>constraints</u><u>.</u> Once all these factors are in place, the solution can be designed.
Also, this is not a biology question!
Answer:
After Laurel Braitmen's dog jumped out of the third floor window she quickly became worried and this exposed the mental illness of animals to her world.
Explanation:
I believe it is A because Living things respond to changes, each and every living organism is made up of cell and adapting to changes is same as responding to changes.So, only one left is A.
Lymphocytes produce b and t cells and the b cells are responsible for creating antibodies
In the section pointing to the pulmonic valve which serves as the gateway from the right ventricle and the pulmonary circulation, the primary function is to prevent backflow of blood form the pulmonary trunk into the right ventricle. In the section pointing to the tricuspid valve, otherwise known as right atrioventricular (AV) valve, it functions to prevent backflow of blood from right ventricle to right atrium. In the section pointing to the aortic valve which serves as the gateway from the left ventricle and the pulmonary circulation, the primary function is to prevent backflow of blood from the aorta into the left ventricle. Lastly, in the section pointing to the mitral valve, otherwise known as the left atrioventricular (AV) valve, it functions to prevent backflow of blood from the left ventricle to the left atrium.