Download App

Principles of Ecology. — BIO BOTANY STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYPrinciples of Ecology.1 Mark
MCQ
Earth day is observed on
  • ✓
    April 22nd
  • B
    March 21st
  • C
    July 07th
  • D
    September 16th
✓

Answer

Correct option: A.
April 22nd
April 22nd

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 "Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer." from Principles of Ecology.→Principles of Ecology. — all question types→BIO BOTANY STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

Identify the cryoprotectant
→
Assertion (A) : Sterilization helps to overcome microbes.
Reason (R) : Explants are autoclaved.
→
Assertion (A): Pure line varieties show homozygosity.
Reason (R): Pure line species are obtained through cross-pollination.
→
Gregor Mendel __________
(i) was born in Czechoslovakia
(ii) did his experiments in Pisum fulvum
(iii) was the first systemic researcher in genetics
(iv) Published his results in the paper “Experiments on Plant Hybrids”
→
Product of triple fusion is
→
Statement 1: The widely accepted DNA replication model is Holliday’s hybrid DNA model.
Statement 2: The vertical cut in the DNA results in heteroduplex with non-recombinants.
→
Azolla is best suited biofertilizer for ____________
→
Name the person who discovered the pollen tube?
→
Methane is __________ times as effective as $CO _2$ at trapping heat.
→
Match the following:
Epistatic interaction Example
(A) Complementary genes (i) Seed capsule in xxxxx
(B) Supplementary genes (ii) Leaf color in rice plant
(C) Inhibitory genes (iii) Grain color in maize
(D) Duplicate genes (iv) Flower color in sweet peas
→