What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction? see concept 15.4 (page 307)

Name the organs of humanelemintary canal.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms