Answer:
Organisms use various strategies and adaptations to regulate body temperature and metabolism. The organisms control the exchange of heat by various ways which include physiological, behavioural means and by insulation.
The factors which play most important role in the heat exchange regulation between environment and organism are as follows:
- effective temperature difference between organism and environment
- Exposed surface area
- Evaporatory and circulatory changes
<u>Insulation</u> :Another most common method used for heat exchange.Animals who have furs,feathers and fat layers which play significant role in insulation. They are very much important because they reduce heat exchange amount between environment and organism. The most common example is of Cats. They used to curl up their bodies when they want to sleep in cold environment, they tuck their bodies in their paws and legs, and they wasp their tails around their bodies. When organism uses the food and oxygen the body temperature begins to increase, this method is known as metabolic heat production.
Answer:
A. Early signs of life on earth
Explanation:
The Hadean, before the Archean, is the first geologic eon of Earth. It began with the formation of the Earth about 4600 million years ago and ended 4,000 million years ago. The planet had just formed and was still very hot due to high volcanism, a partially molten surface. Some geologists labels the period before the earliest-known rocks on Earth. At the end of it much cooler surface temperature and the formation of solid rock enabled to flaurish the life.
Answer:
Solar Energy
Explanation:
The table is about renewable and non renewable natural resources which may or may not pollute the environment. Natural gas and wind are the renewable energy resources which do not adversely affect the environment. Coal is non renewable energy resource that release harmful gases into the air upon burning. Solar energy is another example of renewable resource that do not pollute the environment.
