The reptile's body temperature rises when the external temperature rises. When the temperature drops, so does his body temperature. If a reptile feels cold because the external temperatures have made his blood cold, he'll lie in the sun to warm up. However, if the external temperature is too high, he scurries under a rock, dives in a pool or finds some kind of shade where he can cool down. Reptiles and other animals with ectothermic systems are vulnerable to extreme changes in temperature because they can't control their temperatures internally. They can control their body temperatures only by moving to an environment with a suitable ambient temperature.
Answer: The plant tissues act as a filter to remove harmful bacteria. Rohit Karnik designs membranes used in fraction system.
Explanation: Like wood, these membranes allow water to pass through, but not bacteria. Mr. Karnak might be able to apply the research on the wood to his designs.
Because the tilt of earth affects the angle of the sun's rays and causes the seasons in temperate regions. Even though the earth is far away from the sun, the northen hemisphere is tilted toward the sun, so the solar energy is more concentrated in this area.
