Download App

Ecosystems — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems2 Marks
Question
Explain:
  1. Stratification.
  2. Leaching.
✓

Answer

  1. Stratification: It is the venical distribution of different species occupying different levels in an ecosystem, e.g. trees occupy top vertical strata or layer of a forest, shrubs the second and herbs and grasses occupy the bonom (third) layers.

  2. Leaching: It is the process by which water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Short Answer Type Questions [2M]" from Ecosystems→Ecosystems — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Explain the law of segregation with any one example.
→
How and why is the bacterium Thermus aquaticus employed in DNA technology? Explain.

Or

Name the source of the DNA polymerase used in PCR technique. Mention why it is used?

Or

Give the name of the organism from where the thermostable DNA polymerase is isolated. State its role in genetic engineering.

→
Explain the contribution of Thermus aquaticus in the amplification of a gene of interest.
→
What is restriction enzyme? Explain the process of separation and isolation of DNA fragments using gel electrophoresis technique.
→
How many primary follicles are left in each ovary at puberty?
→
“Decomposition is an oxygen requiring process” Comment.
→
How does the dead organic matter get decomposed in nature? Explain.
→
State the functions of Ribozyme and release factor in protein synthesis, respectively.
→
Name an allergen and write the response of the human body when exposed to it.
→
Differentiate between:
  1. Hypocotyl and coleoptile.
  2. Protandry and protogyny.
→