Can anyone plzzz help me ! Which of these responses is a result of a seasonal change, which happens
over and over at a certain time of year?

O A. Plankton dying due to an oil spill
O B. Fish moving away from polluted water
C. Frogs digging into mud to hibernate
D. Grass becoming sparse due to overgrazing

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer