What type of reaction is photosynthesis, the process where carbon dioxide combines with water to form glucose in the presence of sunlight?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

The combining form leuk/o means red true or 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.