Is an involuntary muscle that has the striated appearance of skeletal muscle with dark and light bands along the length of its fiber?

Environmental impacts on evolution : mastery test

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.

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?