Answer:
Mitochondria
Explanation:
Mitochondria is the site of cellular respiration which produces energy. A cell with few energy needs would therefore contain a small number of this organelle.
Answer:
have DNA, but are NOT large or complex
Explanation:
It would be A keeping lakes and rivers free of pollution im pretty sure im on the question myself but im pretty sure that i got it right.
Nitrogen in form of soluble nitrite salts
Carbon in form of carbon dioxide
Nitrogen is converted to salts by the action of nitrogen fixation bacteria or can be provided by use of chemical fertilizers or organic fertilizer
carbon dioxide is present in air from where plants influx it from stomata opening in leafs
Answer:
Science refers to a system of acquiring knowledge. This system uses observation and experimentation to describe and explain natural phenomena. ... Less formally, the word science often describes any systematic field of study or the knowledge gained from it.
