Pollination occurs when: a. a sperm and egg unite c. a pollen grain touches the stigma b. pollen is released from the flower d. a pollen grain touches the ovary A B C D 33.
(a sperm and egg; unite; ) (a pollen grain; touches; the stigma b. pollen) (a pollen grain; touches; the ovary A B C D 33)
a sperm and egg a pollen grain a pollen grain
unite touches touches
the stigma b. pollen
the ovary A B C D 33