Download App

Organisms and Populations — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations3 Marks
Question
Highlight the differences between the population interactions given below. Give an example of each.
  1. Parasitism.
  2. Amensalism.
  3. Mutualism.
✓

Answer

  1. Parasitism: Only one species benefits.
Example: Cuscuta/Tape worn.
  1. Amensalism: One species is harmed whereas the other is unaffected.
Example: Penicillium growing on bacterial culture/Trichoderma - biological control agent and plant pathogen.
  1. Mutualism: Both Species benefit.
Example: lichens.

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 "Answer the following questions in detail." from Organisms and Populations→Organisms and Populations — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Write a note on bleeder’s disease and its inheritance with a suitable chart.
→
Explain any three important characteristics of population.
→
Valves are present in veins.
→
This sludge can be used as an inoculum or as a source of biogas. Explain.
→
Why is it said that consumption of mother’s milk is safety for the newborn?
→
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.
→
Give reason : Patent jointly issued by Delta and Pineland Company and U. S. department of agriculture under the title ‘control of plant gene expression’ was not granted by Indian government.
→
What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
→
  1. A tRNA is charged with the amino acid methionine.
  1. Name the process involved in the attachment.
  2. Point out the mRNA codon and anticodon on RNA for this amino acid.
  1. What is heterochromatin?
→
What will happen to an ecosystem if:
All producers are removed.
→