CRITICAL THINKING 3.Buffalo graze on the grasses
of the North American plains, while yaks graze on
grass in northern Asia. How do Darwin's catego-
ries of species variation apply to this comparison?

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

answer: your large intestine is about five feet (or 1.5 meters) long. the large intestine is much broader than the small intestine and takes a much straighter path through your belly

explanation: the small intestine also is known as small bowel, which is around 20 feet long while large intestine which is also called colon or large bowel, is only 1.5 m long in size. being the part of our digestive system, they differ in their structure as well in their functions too