Why do you think it's important for scientists to study Earth's past climates? What information
are scientists likely to gain from investigating the
Earth's past? Since the data obtained by
paleoclimatologists is not based on direct
observations, can their discoveries and models
be trusted? Why or why not?

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

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.

In which layer do organisms on earth love?