Grade 7 Science - Plant Reproduction
You cannot study plant reproduction without talking about pollinators. Bees, butterflies, moths, bats, and even lizards accidentally transfer pollen while looking for nectar.
For the purpose of Grade 7 Science, the flower is the star of the show. It is not merely a pretty object; it is a highly specialized biological machine designed for sexual reproduction.
By the end of this Grade 7 Science unit, you should see your backyard differently. A dandelion isn't just a weed; it's a sexual reproduction machine using wind parachutes. A potato isn't just food; it's a tuber waiting to clone itself. Grade 7 Science - Plant Reproduction
Buoyant seeds that float to new shores (like coconuts).
Farmers often use asexual reproduction for crops (like bananas and grapes) because they want identical, predictable fruit. But when a disease like Panama disease attacks bananas, the entire global crop is at risk because they are all clones. You cannot study plant reproduction without talking about
Plants are masters of vegetative propagation (reproducing from roots, stems, or leaves).
If sexual reproduction is about diversity, asexual reproduction is about . Asexual reproduction involves only one parent. The offspring are genetically identical to the parent (clones). It is not merely a pretty object; it
Consists of the Stigma (sticky top), Style (tube), and Ovary (contains ovules/eggs).
Consists of the anther (which produces pollen) and the filament (the stalk holding the anther).