Which relationship is an example of commensalism? a) hyenas and lions fight over the same antelope kill. b) a tapeworm lives in the intestine of a dog, obtaining food for itself, while slowly harming the dog. c) remora fish stick to large sharks, receiving a free ride and scraps of food the shark does not eat. the shark is neither nor harmed. d) a diamondback rattlesnake and a gopher turtle share a burrow. the turtle digs the hole, and the snake provides protection from predators for the turtle.

Living cells cannot use heat to provide the activation energy for biochemical reactions because which choice(s) complete the sentence correctly? a) answer choice ii. eliminate b) answer choices ii and iv. c) answer choice iii and iv. d) all answers can complete the sentence.

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.