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  • Give one example for each of the following: i. Eurythermal plant species _______________ ii. A hot water spring organism _______________ iii. An organism seen in deep ocean trenches _______________

Give one example for each of the following:

i. Eurythermal plant species _______________

ii. A hot water spring organism _______________

iii. An organism seen in deep ocean trenches _______________

iv. An organism seen in compost pit _______________

v. A parasitic angiosperm _______________

vi. A stenothermal plant species _______________

vii. Soil organism _______________

viii. A benthic animal _______________

ix. Antifreeze compound seen in antarctic fish _______________

x. An organism which can conform _______________

Answers (1)

(a) Gracilaria  (b) Alycyclobacillus  (c) Giant tube worms  (d) Earthworm  (e) Misteltoe  (f) Pine  (g) Earthworm  (h) Sponge  (i) Antifreeze glycoproteins  (j) Mangifera

(a) Gracilaria

  • Gracilaria is a genus of red algae found in marine environments. It is significant for producing agar, a gelatinous substance widely used in microbiological culture media, the food industry, and biotechnology.

(b) Alicyclobacillus

  • Alicyclobacillus is a genus of thermophilic (heat-loving) bacteria often found in hot springs and acidic environments. They are notable in food microbiology as they can spoil fruit juices due to their ability to survive pasteurization.

(c) Giant tube worms

  • Giant tube worms (Riftia pachyptila) are marine invertebrates living near hydrothermal vents in the deep ocean. These worms have a symbiotic relationship with chemosynthetic bacteria that provide them energy by converting chemicals from vent emissions.

(d) Earthworm

  • Earthworms are terrestrial annelids that play a crucial role in soil health. By burrowing and feeding on organic matter, they aerate the soil, enhance its structure, and contribute to nutrient cycling, making them essential for agriculture.

(e) Mistletoe

  • Mistletoe refers to parasitic plants that attach to the branches of host trees and shrubs. They extract water and nutrients using specialized structures called haustoria, often causing harm to the host plants.

(f) Pine

  • Pine trees (Pinus species) are gymnosperms commonly found in temperate climates. They are adapted to specific environmental conditions and are widely used for timber, resin, and ornamental purposes.

(g) Earthworm (repeated)

  • As mentioned earlier, earthworms are beneficial for the ecosystem, especially in promoting soil fertility through their decomposition of organic material.

(h) Sponge

  • Sponges (Porifera) are simple, sessile aquatic animals that filter feed by pumping water through their porous bodies. They play a role in marine ecosystems by cleaning water and serving as habitats for other organisms.

(i) Antifreeze glycoproteins

  • These are special proteins found in the blood of Antarctic fish and other cold-dwelling organisms. They prevent ice crystal formation, allowing these organisms to survive in freezing temperatures.

(j) Mangifera

  • Mangifera is a genus that includes the mango tree (Mangifera indica), a tropical fruit-bearing plant valued for its sweet fruits. Mango trees are also culturally significant and widely cultivated in tropical and subtropical regions.

 

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