Mutualistic relationships among species, such as among plants and pollinating animals: (choose all that apply) a. may be destabilized by the evolution of "cheating" in which one species obtains a benefit from the other without providing benefit in return b. are inherently stable, because the species are likely to become extinct if they do not maintain the mutually beneficial relationship. c. evolve in order to maintain the balance of nature. d. begin with one species evolving to benefit the other, in order to induce the other species to evolve reciprocity. e. show that the notion of “selfish genes” is wrong.

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

How does a lytic infection differ from a lysogenic infection?