常見例句雙語例句Nutrients pass through the funicle to the ovule and seed.營養(yǎng)物質(zhì)通過珠柄傳遞到胚珠和種子。Once the egg is fertilized, the ovule becomes a seed, and the whole ovary becomes a fruit.一旦受精卵形成,胚珠就變成一顆種子,整個子房就變成一個水果。Whereas animal-pollinated plants produce a median of 3, 450 pollen grains for every ovule, wind-pollinated plants produce almost 10 times as much.蟲媒傳粉的植物平均每個胚珠生産約3450?;ǚ?,風(fēng)媒傳粉的植物生産的花粉幾乎是這個數(shù)量的十倍。 返回 ovule