A <u>tropical rainforest</u> is an example of an ecosystem with high primary productivity while a <u>desert</u> is an example of an ecosystem with low primary productivity.
Climate change refers to significant changes in global temperature, precipitation, wind patterns and other measures of climate that occur over several decades or longer.
The seas are rising. The foods we eat and take for granted are threatened. Ocean acidification is increasing. Ecosystems are changing, and for some, that could spell the end of certain regions the way we have known them. And while some species are adapting, for others, it’s not that easy.
Evidence suggests many of these extreme climate changes are connected to rising levels of carbon dioxide and other greenhouse gases in the Earth’s atmosphere — more often than not, the result of human activities.
Climate change, therefore, is a change in the typical or average weather of a region or city. This could be a change in a region's average annual rainfall, for example. Or it could be a change in a city's average temperature for a given month or season. Climate change is also a change in Earth's overall climate.
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Proteins are made of hundreds and thousands of polymers called Amino Acid which are attached with each other in long chains. There are 20 different types of amino acids that make up a protein
Tropical rainforests are rich habitats for many species of animals because there are many resources available. There is a lot of water available and a lot of plants. <span> it offers lots of niches for different species. The trees are kind of like skyscrapers, with different species living at different levels and at each level there is a range of species with certain adaptations to allow them to thrive.</span>
A reflex is a built in operation that performs without orders from your mind.
A habit is something you as a person forms and we can train our minds to stop the habit.
