Answer:
An open system is a system that has external interactions. Such interactions can take the form of information, energy, or material transfers into or out of the system boundary, depending on the discipline which defines the concept
Explanation:
They respire and give off c0^2
Answer:
For the numbers on the brain
1. Forebrain: Telencephalon
2. Forebrain: Diencephalon
3. Hindbrain
4. Midbrain
Explanation: correct
If mitosis occurred without cytokinesis, the cell would contain two nuclei and twice the DNA. If cytokinesis occurred without mitosis , one of the new cells would lack DNA and a nucleus altogether. The cell cycle is regulated by signals both inside and outside of the cell.