Biology, 05.11.2020 20:10, eternity88091
What is the total number of protons, neutrons, and electrons in an atom of arsenic, As, that has a mass number of 75?
Answers: 3
Biology, 22.06.2019 15:30, emmalou54
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
Answers: 1
Biology, 22.06.2019 18:30, googoo4
What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water
Answers: 3
Biology, 23.06.2019 03:10, Shaness6941
Which is an ion found in a glass of water? a. h+ b. n+ c. o- d. o2
Answers: 3
What is the total number of protons, neutrons, and electrons in an atom of arsenic, As, that has a m...
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