The goosefish tends to lives on the bottom of the ocean, where oxygen levels may be significantly less than the surface of the water, where the mackerel often swims. assume that the partial pressure for oxygen is 50 mm hg where the goosefish lives, and 100 mm hg where the mackerel lives. adjust your answer to the question you answered above based on this new information – that is, how much more oxygen will cross the respiratory membrane of the mackerel compared to the goosefish? (hint – again, express an answer in how many times more gas would exchange in the mackerel gill). (3)

Which law represents a balanced chemical equation?

How is transcription similar to translation in terms of base pairing?

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10