Four critical nutrients essential to sustain living organisms are?

Carbohydrates, proteins, fats, vitamins, and minerals are all examples of essential nutrients.

Explanation:

Carbohydrates, proteins, and fats are all considered macronutrients, meaning they are needed in large amounts.

Vitamins and minerals are considered micronutrients meaning that they are needed in small amounts.

*Macro means large

*Micro means small

~Hope this helps!~

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.