Discuss how crossing over leads to greater variability of phenotypes.

Alex determined that his average speed when he commuted to work is 35 miles per hour. what conversion factor can be used to convert this speed to feet per hour?

Did the universe cool off or get hotter as it expanded after the 'big bang"?

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.