Conifers are different to flowering plants because conifer reproduce with seed cones. The pollen come out of the male cone and fertilises the ovule or female cone. Conifers are also different because the have needle like leaves but I'm not sure if that's relevant... Any way, I hope this has helped. You might have to do a bit more research. Conifers also have naked seeds, whereas flowering plants have their seeds encased in flesh (fruit). Although some conifers like the plum pines also have fruit.
Also flowering plants have... flowers. And non flowering plants don't.
