D. They make their own food using energy from the sun. Trees use a process called photosynthesis to convert light energy from the sun, carbon dioxide, and water into glucose (the food) and oxygen.
Answer:
Urea is produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body. Urea is carried in the bloodstream to the kidneys, where it is removed along with water and other wastes in the form of urine.
Explanation:
Answer:
C
Explanation:
Recycling a metal can so it can be reused.
They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances