The medulla oblongata, the pons and the midbrain make up the brainstem. a. true b. false

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

What are the characteristics of carbon bonds? check all that apply.