What happens in the phloem? (1 point) 1. water moves up from roots. 2. food moves down from leaves. 3. food moves up from roots. 4. water moves down to roots.

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles

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.

Which of the following is one way in which organisms such as clown fish and sea turtles are able to overcome the many dangers that their offspring encounter and ensure that their species population numbers stay relatively steady