EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

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

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.