Yes, They all are! They all can be the start of something.
The Earth’s climate is a solar powered system and one watt is one joule of energy every second
Answer:
Kidney is not connected to its system
Explanation:
the kidney belongs to the renal system
Answer:
D. reproduction
Explanation:
If the species doesn't reproduce they die out or become extinct.
You could either say it turned because of oxidation or corrosion.
