Describes exercise that does not require oxygen to produce the necessary energy to carry out the activity. a alveoli b aerobic c anaerobic d oxygen uptake

Anaerobic

Anaerobic simply means an absence of oxygen.

During exercise, muscle cells prefer to get energy by using oxygen, but in anaerobic conditions like high-intensity exercise, muscle cells rely on other reactions. It is an activity that causes you to be out of breath, like lifting heavy weight. Anaerobic exercise ’s main role is to build strong muscles.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.