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PVA Science A6
Science Section A Lesson 6
| Term | Definition |
|---|---|
| A flower that has sepals, petals, stamens, and pistils is termed a _______________. | complete flower |
| A flower containing both male and female parts is called a _____________________. | perfect flower |
| A "female" flower has pistils, but no ________________ and would be called an imperfect flower. | stamens |
| A "female" flower has pistils, but no stamens and would be called an _____________ flower. | imperfect |
| A single oak tree has both _____________ and female flowers, but a willow tree has either male flowers or female flowers. | male |
| A single oak tree has both male and ___________ flowers, but a willow tree has either male flowers or female flowers. | female |
| Holly berries are the ________________ of a holly tree with female flowers. | fruit |
| Both large and tiny seeds __________________ in the same way. | develop |
| Pollen on a flower's ___________ contain male sex cells. | anther |
| The transfer of pollen from anther to stigma is called _______________________. | pollination |
| The transfer of pollen within the same flower is called _______________, while carrying the pollen to another flower is called cross-pollination. | self-pollination |
| The transfer of pollen within the same flower is called self-pollination, while carrying the pollen to another flower is called ___________. | cross-pollination |
| A pollen grain forms a tube leading to the flower's ______________, where sperm fertilizes an egg cell. | ovary |
| A pollen grain forms a tube leading to the flower's ovary, where sperm ___________ an egg cell. | fertilizes |
| A fertilized egg cell develops into a __________. | seed |
| The three main parts of a seed are the _________________, seed coat, and cotyledon. | embryo |
| The three main parts of a seed are the embryo, _______________________, and cotyledon. | seed coat |
| The three main parts of a seed are the embryo, seed coat, and ________________. | cotyledon |
| an immature plant | embryo |
| a tough covering of a seed | seed coat |
| part of the seed where food is stored as starch | cotyledon |
| The two steps in growing a new plant from a seed are ____________________and germination, or sprouting. | seed dispersal |
| The two steps in growing a new plant from a seed are seed dispersal and _________________, or sprouting. | germination |
| To grow, seeds often must move far away to avoid _____________ from other plants. | competition |
| Animals that eat ripe _______________ help spread seeds through their wastes. | fruit |
| Animals that eat ripe fruit help spread seeds through their _________________. | wastes |
| Wind and animals also move the cones and seeds of _____________________, which do not have fruit | gymnosperms |
| Since ______________ don't produce flowers or fruits, their life cycle is not the same as angiosperms. | gymnosperms |
| A pine tree produces both _______ and female cones. | male |
| A pine tree produces both male and ___________ cones. | female |
| Pollen from a male cone is carried by wind to a female cone, where it ________________ an egg cell. | fertilizes |
Created by:
LMay