Question

Organisms belonging to benthos of lake are:
a. Germs and beetles
b. Chironomid larvae and red annelids
c. Daphnia and notonecta
d. Ranatra and copepods

Answer 1

Hint: The benthic zone is the ecological region at the lowest level of a body of water.

Complete Answer:
a. Many species hunt down keep grains and prepacked foods, whereas others go after garden plants, wood, or fabric. owners could accidentally bring the pests into the house alongside the plagued product.

b. The lake system is formed from organic phenomenon and abiotic interactions. whereas the organic phenomenon system includes plants, animals and microorganisms the abiotic system includes the non-living factors. Further, the lake system has 3 distinguished zones- the oceanic or open water zone, the benthic zone created from bottom and shore regions and therefore the profundal- the deep bottom regions not exposed to lightweight. The community of organisms that sleep in the benthic zone are spoken as benthos and therefore the invertebrate community includes crustaceans, amphipods, polychaete worms, clams, snails. chironomus gnat larvae etc.

c. Daphnia may be found in nearly any permanent body of water, even in rain-filled tire ruts or many meters from the bottom, growing in tree nonvascular plants in an exceedingly rain forest. Area units are primarily fresh and also the highest concentrations of water flea populations are found within the vegetation in most lakes and ponds.

d. Copepods inhabit a large variety of salinities, from water to hypersaline conditions, and that they may be found nearly all over there. Ranatra linearis could be a species of aquatic bug within the Nepidae family. it's native to the continent and geographic region, and primarily found close to aquatic plants in ponds, marshes and different fresh habitats, however has exceptionally been recorded from hypersaline lakes and briny lagoons.

Hence option:B is the correct answer.

Note: The word benthos comes from a Greek term meaning “depths of the sea.”