Science

2. process where molecules move from an area of higher concentration to an area of lower concentration
4. form of a gene
8. chemical secreted by one animal that affects the behavior of another animal of the same species
10. a hormone that controls a plant's growth and response to light
11. reproductive structures of gymnosperms
12. plants whose seeds are not protected by an ovary or fruit and reproduce using cones

1. transfer of thermal energy through fluids
3. the intersection where one neuron can transfer a signal to the next one
5. fluid that travels through the lymphatic system made of water, white blood cells, and dissolved materials
6. tiny sacs in the lungs made for the movement of gases between air and blood
7. small filtering structure in the kidneys that removes wastes from blood and produces urine
9. land area that supplies water for a river system