What is the purpose of using a pedigree? to study the causes of traits that are acquired during an organism’s life to understand patterns of inheritance in organisms to determine mating patterns in organisms to identify traits that are acquired during an organism’s life

The correct option is to understand the patterns of inheritance.

Explanation:

A pedigree can be described as a chart or tree, that shows the record of the ancestors of a person or family, in a linear manner. The pedigree can be very helpful in studying genetic diseases. A specific genetic disease that occurs in a particular family can be studied and evaluations can be made about the occurrence of this disease in future children. Pedigree is also very helpful in studying the patterns of traits being passed from ancestors to children.

The correct answer is B

Explanation:

the endomembrane system i think

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.