As an overall average, about of the energy at one trophic level is available to the next-highest rank in the food chain.

Which of the following is a common danger of commercial fishing?

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.