Answer:
The human body needs a list of macromolecules and micromolecules for performing day to day functions.
The essential macronutrients that the body requires are:
Carbohydrates: Carbohydrates are required by the cells in the body to carry out normal day to day functions. Energy is provided in the form of calories by the carbohydrates.
Proteins: Proteins are essential nutrients which are required for growth as well as better functioning of the immune cells of the body.
Fats and oils: These are needed for providing insulation to the body and to store energy.
Fibres: These are a mixture of carbohydrates.
Water: Almost every activity of the body requires water.
The essential micronutrients that the body requires are:
Vitamins: Vitamins are a group of substances which are needed by the body to function normally.
Minerals: Mineral are needed to ensure that tissues are working correctly.
Answer:
An organisms niche is it's role in the ecosystem. This includes what it eats and what it's eaten by, and is usually affected by it's habitat.
An organisms habitat is simply where the organism lives.
Answer:
In winter, the forest is extremely cold. The roots of the evergreen plants are unable to access water. The needle-like structure of these trees minimizes water loss from transpiration. The needles are also dark in color. The color allows them to absorb maximum sunlight for photosynthesis. Even with little food, the animals in the biome can access food from these trees. Squirrels can eat the seeds from the pinecones. Crossbill birds have special beaks that allow them to access the seeds. Moose eat sappy twigs. They’ve also adapted to build fat reserves to help them survive the harsh winter. Some animals hibernate, and others migrate to warmer places to survive the winter. During summer, the long days allow abundant photosynthesis. So, there’s increased plant growth accompanied by increased insect activity. Trees with seasonal leaves develop new leaves. Birds that had migrated return during the summer, when food is readily available. The plants and animals work as a system to obtain an adequate food supply throughout the year.
Explanation:
