What is the function of keel petal?

Their keel petals are elongate, fused together and sometimes tubular to facilitate pollination by certain bird groups, while secondary compounds in their nectar seem to repel bees.

What does keel mean in biology?

A keel or carina (plural carinae) in bird anatomy is an extension of the sternum (breastbone) which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs.

What is the keel of a pea plant?

Below the banner are a pair of petals called the wings. And, between the wings, two petals are fused together to form the keel, which covers the male and female parts of the flower. Because of the resemblance to a butterfly, pea flowers are called papilionaceous (from Latin: papilion, a butterfly).

Where are Nectaries found?

Small secretory structures, called nectaries, are often found at the base of the stamens; they provide food rewards for insect and bird pollinators. All the stamens of a flower are collectively called the androecium.

What is a keel in a fish?

Noun. caudal keel (plural caudal keels) (ichthyology) A lateral ridge found just anterior to each side of the tail fin on the caudal peduncle of some types of fast-swimming fish. The keels improve the stability of the fish’s attitude at speed in the water, and strengthen the support of the caudal fin.

What is the keel of a snail?

keel—a longitudinal ridge on the top of a snail or slug’s tail.

What is a keel in a bird?

example, flying birds have a keel—a ridge on the sternum, or breastbone, which is a main site of attachment for flight muscles. Ratites do not possess this keel, and its absence is one reason why the group’s muscles are unsuitable for flight.

Does Tulip have keel?

> Option C: Tulip flowers are the perfect flowers with approximately 3000 varieties of flowering plants. In tulip flowers, the male (6 stamens) and female (pistil) parts are perfectly separated and there is no fusion of parts in the flower and do not form any keel.

What is keel Aestivation?

Keel is petal is vexillary aestivation, which is a characteristic of family – Fabaceae, i.e. Indigofera tomato belongs to family – Solanaceae, tulip and while aloe to Liliaceae. It follows vexillary aestivation. A single upper posterior petal is known as banner.

What do the nectaries do in a flower?

Nectar in flowers serves chiefly to attract pollinators, such as fruit-eating bats, hummingbirds, sunbirds, and insects. Nectaries are usually located at the base of the flower stamens, which draw animal visitors into contact with the pollen to be transferred.

What is a keel of chicken?

If you’ve ever boiled or roasted a whole chicken, you’ll recognize the keel—it’s the flexible wedge of cartilage connecting a chicken’s breast muscles at the tip of the breastbone.