Oxygen combines with nitrogen to form what type of chemicals that are used by plants

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant.it produces food.it absorbs nutrients.it supports the plan