WAEC - Biology (2009 - No. 18)
Which of the statements below is valid?
The bird’s blood was always warmer than that of the lizard
The body temperature of the bird varied less than that of the lizard during changes in environmental temperature
The body temperature of the bird remained constant despite changes in environmental temperature
The body temperature of the lizard was always close to that of the environmental temperature
Explanation
From the graph of the body temperature of a lizard and a bird under artificial conditions. It can deduced that;
* Lizard
- It is a poikilothermic organism
- Its body temperature varies with the temperature of the environment
- The lizard needs to change to the environment temperature so that it can survive.
* Bird
- It is a homothermic organism
- Its body temperature is always constant to the environment
- The environment temperature those not affect the temperature of the body of the bird
* Lizard
- It is a poikilothermic organism
- Its body temperature varies with the temperature of the environment
- The lizard needs to change to the environment temperature so that it can survive.
* Bird
- It is a homothermic organism
- Its body temperature is always constant to the environment
- The environment temperature those not affect the temperature of the body of the bird
Comments (0)
