Which of the following terms refers to a heritable trait that increases fitness?
A. Adaptation
B. mutation
C. camouflage
D. natural selection

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation