Red blood cells (blood) would be your answer! Let me know if I got it wrong
Answer:
Fritz Pollard
Explanation:
Fritz Pollard and Bobby Marshall were the first black players in what is now the NFL in 1920. Pollard became the first (and until 1989, only) black coach in 1921
I think is b i am really sure.
<span>The Americans were surprised and worried that the Russians
were successful in their space program.
It prompted the Americans to speed up their own missile and space
programs. Agencies such as National Aeronautics
and Space Agency was created in July 1958 and the Defense Advance Research in
February 1958 and other related institution were given $100 million budget by
congress to expand their research in space missile projects. This also heightened the Cold War as both
sides now competed as to who would be able to be successful in space
exploration.</span>
