Question
Response of different organisms to the environmental
rhythms of light and darkness is called?Solution
Photoperiodism is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods.
A train covers a certain distance at a speed of 36 km/h and the next same distance with a speed of 45 km/h and the next same distance with a speed of 60...
The radius of a circular garden is 42 m. The distance (in m) covered by running 8 rounds around it, is: (Take )
- Sita takes 6 hours to walk from village 'D' to village 'E' at a speed of 5 km/h. Then she increases her speed by 60% and takes 2 hours to reach village 'F'...
Vehicles K and L move at speeds of 20 km/hr and 35 km/hr respectively. If K travels 45 km less than L during the same time, what is the distance covered...
A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is 4 hrs 40 min, the distance is
Two trains start at the same time from A and B and move towards each other at the rates of 10km/h and 27 km/h, respectively. When they meet, it is found...
A train travels from station ‘P’ to station ‘Q’ at a constant speed. If its speed was increased by 20 km/h, it would have taken 1 hour less to c...
A car completes a journey in 6 hrs with a speed of 50 km/hr. At what speed must it travel to complete the journey in 5 hrs?
Train A's speed is 25% less than that of Train B, and its length is half the length of Train B. Train A crosses a 400 m bridge in 36 seconds, while Trai...
A bus covers 216 km in 3 hours. The bike’s speed is 6 m/s less than the bus. How far (in metres) does the bike travel in 4 minutes 15 seconds?
