One biotic factor that affects consumers in an ocean ecosystem is... salt content
O number of autotrophs
O temperature variation
O pH of water

You need to make 500ml of 7h9(+) media with 1x adn and 30ug/ml of the antibiotic kanamycin. your stock solutions are 10x adn and 30mg/ml of kanamycin. the solvent is distilled water. how much of each component will you need to make the desired final solution?

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

Animals that have thick fur and ae able to store large amounts of body fat live where ?