Some people have blue eyes and some people have brown eyes. What determines the difference in gene expression?
The presence of deoxyribose sugars
O The location of Hydrogen bonds
O Sequence of Nitrogenous bases
The order of Phosphate groups

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.

What is the most common structure of volcanoes?

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1