The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a variance of 4. What is the probability that a random selected item weights exactly 8 ounces

Which food would provide you with the most calcium?

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.

Match each fossil with the layer where it’ll be present based on those conditions.