A hemoglobin subunit contains 146 amino acids. Part A How many DNA base pairs are required to code for all the amino acids in this subunit

Which events are likely to be catastrophic to an ecosystem? select the three correct answers. a-hurricane. b-steady population growth. c-seasonal flooding. d-introducing of an aggressive invasive species. e-tsunami.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

Which would best keep the oxygen cycle stable? a. cutting down jungles to create farmland b. eliminating parks in large cities c. dumping toxic chemicals into the ocean d. reducing the amount of deforestation d. reducing the amount of deforestation