These glands are endocrine glands. sudoriferous glands
sebaceous glands
apocrine glands
O
holocrine glands
eccrine/merocrine glands
all of the glands listed here are endocrine glands
none of the glands listed here are endocrine glands

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

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.