MCQ
Certain chemical substances having profound effect on growth, are called
- ACatalytic agents
- ✓Phytohormones
- CEnzymes
- DCompost
✓
Answer
Correct option: B.
Phytohormones
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
Which one of the option is correct?
In monocot stem, vascular bundles are.
State wheather the given statements are true or false
→$I.$ Ventillation in humans is an active process
$II.$ Diaphragm helps in generating the pressure gradient in the lungs
Choose the correct option
Which of the following is absent in virus
Ribs that are attached to the thoracic vertebrae and ventrally connected to the sternum with the help of hyaline cartilage are called
Which of the following group of animals maintain high and constant body temperature such as mammals
In floral formula, ${ }^{\prime} K ^{\prime}$ and ' $C ^{\prime}$ stands for
→Assertion: $WBCs$ accumulate at site of wounds by diapedesis.
Reason: It is squeezing of leucocytes from endothelium.
→Reason: It is squeezing of leucocytes from endothelium.
The scientist who observed the cell for the first time was:
Duct leading from parotid gland and opening into vestibule is: