How do plants obtain nitrogen?
a. they remove it from the air.
b. they absorb it through their roots.
c. they fix it in their leaves.
d. they produce it in their stems.

Asap what occurs after cytokinesis is completed at the end of meiosis 1?

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

What type of pollution does household garbage cause