Flowers, Seeds & Plant Life Cycles — Drills · Grade 7 Science
Chapter: Coordination, Defense & ReproductionWhat these drills covers
By the end of Flowers, Seeds & Plant Life Cycles you should be able to:
- I can explain flowers, seeds & plant life cycles.
- I can use evidence, a model, and stated assumptions to support a biological explanation.
4 questions, multiple choice, numeric and written answer, each with a worked explanation.
Vocabulary used: pollination, ovule, embryo, germination, dispersal.
Problem 1
Which is pollination?
- Pollen transfer
- Every seed’s first leaf
- DNA duplication
- All adult survival
Answer and explanation
Pollen transfer
Pollination is pollen transfer; fertilization and development are subsequent distinct processes.
Problem 2
Eight of ten seeds germinate. Find germination percentage.
Answer and explanation
80 %
8/10×100=80%.
Problem 3
Does observing a pollinator visit prove viable seeds formed?
Answer and explanation
No. The visit is one stage; transfer, compatibility, fertilization, and development need further evidence.
Problem 4
Does moving a seed automatically create a mutation?
Answer and explanation
No. Location changes environmental conditions; mutation is a change in genetic material and is a different process.