Answer the following questions in a word or a sentence.
Answers
Answer:
1. Pollination is a method where pollen grains are picked from an anther, which is the male part of a flower and transferred to the flower’s female part called the stigma. To make the pollination work successfully, the pollen grains must be transferred from the same species of flower.
2.Self Pollination
It is referred to as the primary type of pollination as it includes a single flower. Self-pollination occurs when pollen grains fall directly from anther into the stigma of the flower. This process is quite simple and fast, which leads to a reduction in genetic diversity as the sperm and egg cells of the flower share some genetic information.
Cross-Pollination
Cross Pollination
It refers to a complex type of pollination that allows the transfer of pollen grains from the anther of the flower into the stigma of another flower. This method leads to an increase in genetic diversity as different flowers will share and combine their genetic information to create unique offspring.
3.Animals that lay eggs are called oviparous. In oviparous animals, fertilization takes place internally but embryo development takes place externally.
4. Animals that give birth to offspring are called viviparous. In viviparous animals, both fertilization, as well as the development of the embryo, takes place inside the female reproductive system.
11. sperm and ovum
12. asexual.
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