Why are thorns present in Bougainvillea and tendrils in Cucurbita?
Why are thorns present in Bougainvillea and tendrils in Cucurbita?
Thorns of Bougainvillea and tendrils of Cucurbita are homologous organs. These are modified branches and are axillary in position. It means axillary branches in Bougainvillea are modified into thorns for protection from burrowing animals and in Cucurbita into tendrils for climbing.
Are the thorn of Bougainvillea and tendril of Cucurbita homologous or analogous What type of evolution has brought such a similarity in them?
The thorns of Bougainvillea and tendrils of Cucurbita are homologous organs. Divergent evolution has brought a similarity in them.
Why do Bougainvillea have thorns?
Thorns of Bougainvillea are stem shifts. They are serving as protection against grazing animals.
What are tendrils and thorns?
Tendrils are thin stems which grow on some plants so that they can attach themselves to supports such as walls or other plants. Thorns are stiff, sharp-pointed, straight or curved woody projection on the stem or other part of a plant.
On which organ may tendrils grow?
A tendril is a slender whiplike or threadlike strand, produced usually from the node of a stem, by which a vine or other plant may climb.
Which part of Bougainvillea is modified?
stem
Complete answer: The stem is modified to perform various functions. One of the modifications of the stem is the development of thorns in the Bougainvillea which helps in providing support and nutrients to the various parts of the plants.
Which of the following structures is homologous to Thorn of Bougainvillea?
Are gills and lungs analogous?
The organs which have similar functions but are different in their structural details and origin are called analogous organs. Similarly, gills of prawn and lungs of man, both are respiratory organs yet they have very different basic structure.
Are bugambilia poisonous?
The sap of the bougainvillea plant is only mildly toxic, but if ingested in large enough quantities, it can lead to illness. Bougainvillea’s leaves are not toxic, but a prick from the plant’s sharp thorns can lead to dermatitis, a skin rash typically caused by an allergic reaction.
Does bougainvillea need sun?
Bougainvillea is a sun-lover and blooms the best when kept in a heated environment. It has huge roots and doesn’t like to have them disturbed. They need at least six to eight hours of sunlight a day to produce their colours.
What is difference between thorns and prickles?
Complete answer: Prickles are like hairs but are often quite coarse (for example, rose prickles). Thorns are modified branches or stems. Thorns are found to be the modification of stem and formed by axillary buds and are strong in nature as seen in Bougainvillea.
Which plant has tendrils?
Common examples of tendril-producing plants are the grape, members of the squash or melon family (Cucurbitaceae), the sweet pea (Lathyrus odoratus), and the passionflowers (Passiflora species).
What is the scientific name of cucurbits?
Cucurbita (Latin for gourd) is a genus of herbaceous vines in the gourd family, Cucurbitaceae, also known as cucurbits, native to the Andes and Mesoamerica. Five species are grown worldwide for their edible fruit, variously known as squash, pumpkin, or gourd depending on species, variety, and local parlance, and for their seeds.
What are the characteristics of Cucurbita plants?
Most Cucurbita species are herbaceous vines that grow several meters in length and have tendrils, but non-vining “bush” cultivars of C. pepo and C. maxima have also been developed. The yellow or orange flowers on a Cucurbita plant are of two types: female and male. The female flowers produce the fruit and the male flowers produce pollen.
What is the difference between Cucurmosin and cucurbitacin?
Cucurmosin is a ribosome inactivating protein found in the flesh and seed of Cucurbita, notably Cucurbita moschata. Cucurmosin is more toxic to cancer cells than healthy cells. Cucurbitacin is a plant steroid present in wild Cucurbita and in each member of the family Cucurbitaceae.
What is the difference between Cucurbita pepo and cucurbitsa maxima?
The morphological variation in the species C. pepo and C. maxima is so vast that its various subspecies and cultivars have been misidentified as totally separate species. The leaves of Cucurbita moschata often have white spots near the veins.
