Answer: carbohydrate
Carbohydrates are sugars. They store short term energy and make up cell walls. Plants produce glucose, a carbohydrate, during photosynthesis to carry out the above functions. Other carbohydrates include lactose and starches, and they can be found in foods such as fruits, vegetables, bread, and pasta.
Animals need shelter and insulation in the Tundra. The animals here tend to have thicker and warmer feathers and fur. Many of them have larger bodies and shorter arms, legs and tails which helps them retain their heat better and prevent heat loss.
Answer: increasing the amount of crops produced.
Most molecules share a covalent bond. This means that they share electrons with two atoms. The electrons that they share form a new circle that extends around the nucleus of each atom, which is what makes up a molecule. Happy to help. Have a Great Day!