Ellen claims she has a coin that is weighted so that the probability of heads is 70%. to test this, ellen flips the coin 100 times and calculates the relative frequency of each outcome. outcome heads tails relative frequency 0.69 0.31 which statements about ellen's experiment are true? select each correct answer. the relative frequency of heads is very different from 70%. ellen's claim about the theoretical probability of heads is likely to be false. the theoretical probability of tails is most likely 30%. it is likely that the coin is not fair.

Ocean waves move up and down in circles, but transmit horizontally toward the shore.

Atest cross can be used to -predict the phenotypes of a monohybrid cross -predict an unknown genotype of a purebred dominant plant -cross-breed dominant and recessive plants -give probabilities that a trait will appear

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