(04.02 MC)The average annual temperature of a southern forest in Canada has dropped more than 20 degrees over the past 10 years. Which would be a meaningful
method for determining whether this abiotic change has affected the physiology of
the local bear population? (2 points)

i think it is dna, i'm not totally sure but i think it might be.

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.

a bird that nests only in a particular tree species.