When a single gene locus affects more than one trait, this is called

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.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).

answer///(c) the maximum number of organisms an environment can support for a long time; i believe this is correct, plz check luck;