Many children were paralyzed by polio in the 1950s. Today, polio has been reduced by 99 percent. Which statement best explains h
ow this disease has been almost eradicated?
A) Independent behavior helps humans live self-sufficiently and solve their own problems.
B) human communities use their ecosystems in creative ways.
C) human communities are learning to live with less money and fewer possessions.
D) Group behavior helps humans cooperate in order to accomplish large, complex tasks.
2 answers:
Answer:
B
Explanation:
The people are using their own ideas to help.
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Answer:
platelets
Explanation:
platelets clot to plug the holes in the blood vessels and stop the bleeding . if the blood doesn't clot it means there is a low amount of platelets
Cations are positive so they have less electrons than protons, while anions are negative so they have more electrons.
Answer:
The answer is a) enzymes
The Correct answer would be e. Mutate; are selected; evolve
It is an ionic bond that forms.
