You have an opportunity in biology lab to observe the prepared, stained karyotypes of a stallion, a mare, and their foal offspring horses. banding patterns of some of the autosomes from the foal match those of the stallion, while others from the foal match those of the mare. this variability is produced in meiosis due to
(a)semi-conservative replication
(b) random fertilization
(c) non-random fertilization
(d) random alignment of chromosome pairs
(e) mutation

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.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!