PLS HELP! WILL GIVE BRAINLIST!

adult krill feed on algae found in open water. There larvae feed on algae found under the sea ice. More and more sea ice is melting. Will melting sea ice affect the killer whale? Explain.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Explain how organisms could be harmed by high levels of salt from roadways?

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody