What can you conclude about the relationship between toxin secretion and culture density in s. aureus? select the three statements that are true. a. cultures grown at high density secrete significant amounts of toxin. b the transition from culture densities that do not secrete toxin to those that do secrete toxin occurs quickly after a threshold is reached. c. there is no relationship between culture density and the amount of secreted toxin for s. aureus. d. cultures grown at low density do not secrete significant amounts of toxin. e. the relationship between culture density and toxin secretion is linear over the range of culture densities sampled.

List two new traits (structural or behavioral) that each new species of rat might demonstrate as it adapts to the conditions on two of the four islands. choose only two islands that are described in the lesson. record the island latter and the major habitat feature of the island. then list two new traits each rat subspecies might demonstrate in order to survive the habitat on that island. note: new traits should be unique to that island and be in response to that island’s habitat feature. i cannot remember islands that were names in the lesson so only answer if you have done the lesson (5.13 life science 7b) choose 2 of the islands and describe a structural and a behavioral trait for a rat on each island so 4 total answers, 2 different structurals and 2 different behaviorals, one for each rat for each island

Regarding most of the narrator’s story, which word best describes the tone?

Cassandra made a venn diagram to compare and contrast the two stages of cellular respiration. which belongs in the area marked x? energy is released. oxygen is used up. glucose is broken down. carbon dioxide is used up.