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Answer 1

Answer:

A-1- A flower that contains both male and female reproductive organs is called a bisexual flower. 2. The male reproductive organ is called the androecium and the female reproductive organ is called the gynoecium.

2-Artificial pollination is the type of pollination carried out by humans. It is a mechanical technique used to pollinate plants when natural pollination is insufficient or undesirable.

B-Flower is the reproductive structure in angiosperm. The word "flower" is widely used particularly when part or all of the reproductive structure is specific in coloured and form. Flowers offer a seemingly infinite variety of variations in their colour, scale, shape and anatomical arrangement. They vary in size from tiny flowers to large flowering. Each flower is relatively large, spectacular and produced in many plants such as magnolia, poppy, tulip, and petunia, while other plants like aster, snapdragon, and lily may have a very small flower and are carried on in a distinctive cluster called an inflorescence. All flowers have a consistent role, reproducing species by seed generation, regardless of their diversity.

C-1-Pollination of flowers by insects - Entomophily.

2-Ornithophily or bird pollination is the pollination of flowering plants by birds.

D-Two contrivances or methods in flowers that favor cross pollination are insects and wind. Insects move from flower to flower in search of food that allow pollen to get stick on their body and carry pollen as well from flower to flower result into cross pollination

E-

• Monadelphous statements- Filaments of all stamens are united forming a single bundle but the anthers are free. Example- Cotton
• Diadelphous statements- Filaments are united forming two bundles and anthers are free. Example- Pea

• Polyadelphous statements- Filaments are united forming a number of bundles but the anthers remain free. Example- Lemon

A bract is a part of a plant that may resemble a leaf or a petal. Their main function is to protect the flower from pest

Explanation:

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Answer 2

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★A.Explain the following terms↠

① Bisexual flowers are those flowers which possess both stamens and carpels. Within the same inflorescence, male and female reproductive parts are present.

② Artificial pollination is the type of pollination carried out by humans. It is a mechanical technique used to pollinate plants when natural pollination is insufficient or undesirable. It does not require the help of insects or weather.

★B.Differniate between flower and inflorescence↠

✿Flower ⇒

①In flowers the stalk is known as a pedicle.

②It is the specialized branch with limited growth..

✿Inflorescence ⇒

①In inflorescence, the stalk is known as peduncle.

②It is the cluster of flowers arranged on the floral axis.

★C.Give one word for the following ↠

①⇴Entomophily

②⇴Ornithophily

★D. Two contrivances or methods in flowers that favor cross pollination are insects and wind. Insects move from flower to flower in search of food that allow pollen to get stick on their body and carry pollen as well from flower to flower result into cross pollination.

★E. Define ↠

①Monadelphous Stamens ⇒Filaments of all stamens are united forming a single bundle but the anthers are free. Example- Cotton

② Diadelphous stamens ⇒ Filaments are united forming two bundles and anthers are free. Example- Pea

③ Polyadelphous stamens ⇒ Filaments are united forming a number of bundles but the anthers remain free. Example- Lemon