Macrobrachium rosenbergii is known as the Giant Freshwater Prawn.

The economic importance of Centella asiatica (Brahmi) lies mainly in its leaves, not bark. Thus, this is an incorrect match.

The red color of tomatoes is due to a pigment called Lycopene.

Lycopene is a red pigment primarily found in tomatoes and watermelons.

Elephant tusk is the upper incisor tooth of an elephant, which is the hardest.

The symbiotic relationship between fungi and algae in lichen is called 'Helotism', which is a form of mutualism.

Algae found on snow are called cryptophytes and algae found on rocks are called lithophytes.

Based on fertilization, there are two types of fruits: 1. True Fruit - Fruit is formed from the ovary through fertilization and zygote process (e.g., Mango, Corn, Grape, Banana, Almond). 2. False Fruit - When fruits are formed from floral parts other than the ovary (e.g., Apple, Jackfruit, Pear).

Leishmania reproduces through the process of Binary Fission.

Pearls are obtained from the following species in Indian water bodies - Pinctada roding, Pinctada vulgaris, Mytilus, Pinctada margaritifera, etc. In India, valuable pearls are obtained from Pinctada valoria and Ostrea virginiana oysters. When any foreign organism or sand particle enters between the mantle and shell of these oysters, secretion of lime accumulates around the mantle, forming a pearl. In India, commercially the best Lingha pearl is obtained from sea oysters.

Explanation - Loose Smut disease in wheat is controlled by Hot water treatment. In this process, seeds are immersed in hot water to destroy the fungus (Ustilago nuda).

Apis cerana indica (Indian honey bee) is locally known as 'Satpudi honey bee'. A colony of this honey bee has seven hives.

Micronutrients are elements required in very small quantities. Iron is a micronutrient. Note: According to the option list provided in the question, the given answer is '3 and 4', although scientifically only Iron (3) is a micronutrient.

In scientific animal husbandry, both balanced animal feed and selection of superior breeds (genetics) are crucial factors for increasing milk production. Therefore, both statements are true.

Zebu (Bos primigenius indicus) or (Bos indicus) is a breed of cow from the Indian subcontinent.

Cotton fibers are hairs emerging from the seed coat, which are called seed hairs.

Archaeopteryx is the connecting link between Reptiles and Aves (Bird class). It is now extinct.

The economic importance of Terminalia arjuna lies in its bark, not its flower.

Lac is secreted by the crimson female insect (Laccifer lacca). It is used to make varnish, polish, leather, gramophone records, sealing wax, electrical goods, buttons, toys, utensils, bangles, etc.

The correct sequence is: Triassic → Jurassic → Cretaceous (Correct) and Paleozoic → Mesozoic → Cenozoic (Correct). The sequence of Devonian and Silurian is incorrect (Silurian comes first).