A scientist finds a fossil that she thinks might make a good index fossil. Which characteristic does this fossil most likely have?.

Acar averages 22 miles per gallon. if gas costs $2.89 per gallon, which of the following is closest to how much the gas would cost for this car to travel 1,650 typical miles?

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?