Unit B: Topic 3 PLANT REPRODUCTION AND BREEDING
● people ______plants to meet their ______
● selective ______is choosing specific plants for their special ______● the plants are ______and their offspring inherit the ______of both parents. ● ______can change plants by going inside the plant ______and changing some of the ______material
● the parts of the plant that control the ______is the ______
Asexual Reproduction
● one ______plant grows new plants from its______, stems or leaves. ● the young plant is ______to the parent.
There are three methods of asexual reproduction. 1. Layering ● produces plants from the ______● branch from the parent ______to the ground and covers with soil then grows ______
2. Grafting ● a branch from one ______and attaching it to another tree.
3. Cuttings ● cut a small section of a ______or stem to grow a new______
Sexual Reproduction ● involves ______parent that produce______
● plants are slightly ______from the parents ● reproduce using ______● helps ______adapt to changes
Cone Bearing Plants
● female______contain ovule (______)
● ______cone has pollen (sperm)
● pollen blows in the wind to______cone
● egg is fertilized and seed is formed in the cone
Flowering Plants
Pollination ● Pollination occurs when pollen has been______from the anther to the______.
● When the pollen grain ______on the stigma it creates a ______called the pollen ______as it travels toward the ______.
● When the ______cell from the pollen grain reaches the ______or ovule the sperm joins with the______.
● This is called ______.
● The fertilized ______will become a tiny new plant inside the.
● We call this tiny new plant the ______.
Fruit ● fruit is the growing______of the plant
● protects the ______of the plant until they are ripe
Seed Dispersal
Read page 127 and describe the six ways plants can disperse seeds.
1.
2.
3.
4.
5.
6.
Germination
● the ______of the seed into a ______.