Kelp forests are formed by thick concentrations of brown seaweed in ocean waters. they are home to a high number of plants and animals, including sea otters. what happened when people hunted large numbers of sea otters as a resource from within the kelp forest?

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?

Cells control gene expression at which steps

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