What areas can act as carbon sinks? the atmosphere
O the Arctic and Antarctic
O oceans, soils and forests
O all of these

What kind of seafood would you expect to have the highest levels of mercury and why? kelp, because they use the sun to photosynthesize on the bottom trophic level. oysters, because they filter feed on plankton on a lower trophic level. small fish, because they eat plankton on a higher trophic level. sharks, because they feed on organisms on a higher trophic level.

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12