4) The taxonomy of life on earth defines that humans and bats are both classified as: A) Animalia B) Chordata C) Mammalia D) All of these

What is the ecological role of food chains and food webs

What are 3 reasons that natural selection occurs

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.