Question

Bougainvillea flower is an example of
(a) Incomplete flower
(b) Having a large nectary
(c) Water pollution
(d) Large colourful bracts

Answer 1

Hint: Bougainvillea is a flower that is native to eastern South America and has a genus of thorny ornamental vines which are surrounded by three simple waxy flowers with inflorescence of large colourful sepal-like bracts.

Complete answer:
Bougainvillaea flower is an example of large colourful bracts. The species grow up to 12 metres tall and grow over other plants with their spiky thorns and are evergreen. They grow where rainfall occurs all the year and are deciduous if there is a dry season. They have alternate leaves and simple ovate- acuminate with 4- 13 cm long and 2-6 cm broad. The flower of the plant is small and white but the cluster of three flowers are surrounded by the bracts which are 63 in numbers and are associated with bright colours in the plant which includes yellow, pink, magenta, purple, Red, white and orange.

Additional information:
Incomplete flower: An incomplete flower is defined as a flower that misses out any of the parts of a flower in its natural form that includes the petals, sepals, pistils or stamens. Squash plants, sweet corn and most grasses come under the category of incomplete flowers.
having a large nectary: A nectar is produced by a flower to attract the pollinators such as hummingbirds or insects. Nectaries are located at the base of the flower stamens that attract the animal visitors into contact with the pollen which is to be transferred.
water pollution: Water pollution is the contamination of the water bodies which includes the seas, oceans, rivers and lakes. It is due to human activities. Agricultural activities performed by humans pollute the rivers and cause water pollution which is through fertilizers or animal waste that gets washed into the farms and contaminates the water.

So, the correct answer is 'large colourful bracts'.

Note:
The colourful texture of the plant bougainvillaea is due to its bract and it is Grenada's national flower and is successfully grown outside in a sheltered area in the UK. Tribal people use the extract of the plant for fertility control. It possesses anti-cancer and anti-diabetic properties.