The 1st, 2nd, and 3rd are true.
1827 is when Oxford discovers the small particles
DNA supports evolution because all life on Earth carries DNA, and evolution happens only after DNA changes. These changes are called mutations and happen spontanoulsy from flawed DNA copying or from mutagens, such as X-rays or chemicals.
Consumers/producers: A surplus of consumers and a reduced amount of producers cause an ecosystem to collapse. Their are more mouths to feed then there is food
Answer:
refrain from using or disposing of (something); retain for future use.
Explanation: