MCQ
Which of the following is an indirect ecological factor
- ATemperature
- ✓Soil structure
- CLight
- DAir
✓
Answer
Correct option: B.
Soil structure
b
It’s obvious.
It’s obvious.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Below is the diagramatic representation of response of organisms against temperature. Find out the correct match.
Assertion : Vessels are elongated or tube-like cells with thick and lignified walls and tapering ends, dead and are without protoplasm.
Reason: Tracheids are a long cylindrical tube-like structure with lignified walls and a large central cavity, dead and are without protoplasm
Reason: Tracheids are a long cylindrical tube-like structure with lignified walls and a large central cavity, dead and are without protoplasm
$A$ : Phytochrome, a protein, has regulatory function.
$R$ : Various morphogenetic processes are regulated by it.
→$R$ : Various morphogenetic processes are regulated by it.
$I.$ Copy number is defined as the number ofcopies of plasmid present in a cell.
→$II.$ It varies from $15-100$ copies per cell. Choose regarding the above statements.
Pollen grains of a plant, whose $2 n=28$, are cultured to get callus by tissue culture method. What would be the number of chromosomes in the cells of the callus?
→Which plant hormone promotes seed dormancy, bud dormancy and causes stomatal closure?
During seed germination its stored food is mobilized by
Statement I: The conversion of BPGA to 3-phosphoglyceric acid (PGA), is an energy yielding (ATP) process.
Statement II: ATP is not synthesised during the conversion of PEP to pyruvic acid.
Statement II: ATP is not synthesised during the conversion of PEP to pyruvic acid.
Cycas is
Abrin and ricin are.