Answer:
Remaining the same
Explanation:
By the Lavoisier's principle the matter can't be created nor destroyed, but always transformed.
It means that in an ecosystem, the matter, and also the energy, is not increasing and not decreasing, the total amount remains the same, but in different forms.
Answer:
I'm sorry didn't understand
The number of electrons is 20. hope this helps
Answer:
7
Explanation:
Na2 SO4 is the chemical identity. You can count the number of atoms just by looking
Answer:
Signals from the A. Nervous system make the skeletal muscles move.