How many neutrons does an element have if it's atomic number is 49 and it's mass number is 150?

Which organisms use cellular replication called Mitosis? A.) Plants B.) Insects C.) Humans D.) Algae E.) All of the above F.) None of the above

Air moves from areas of high pressure to areas of low pressure? is it true or false

Explain how friction affects the mechanical energy of a system.

5. If forests serve as important sinks for greenhouse gases, describe how past ice ages might have affected the concentration levels of carbon dioxide in the atmosphere.

Which types of vaccines described on the website are examples of live vaccines? explain your reasoning?

Which measure of the center is most affected by the really low score

What is the smallest organism on Earth?

Where in the cell does dna replication take place

How might sensing movement be more important to an insect than seeing details?

What is true about the relationship of adenine and thymine? - Adenine and thymine are a base pair - Adenine and thymine are antiparallel - Adenine and thymine form a covalent bond - Adenine and thymine are phosphates