The "frustule" cell wall of diatoms. A dinoflagellate isn't constructed this way. The frustule is composed of two parts which are pretty much identical except for size -- one of the parts is slightly smaller than the other.
Answer:
The most prevalent environmental threat to human populations caused by landfills is the contamination of surface and ground water. so, most modern landfills in the u.s. are designed to protect against hazardous chemicals escaping into the surrounding soil.
The sneezing is release of air that helps the body to get rid of irritants in our nose and throat, like allergens, dirt, and dust.
Coughing is by forcing the air out of the lungs with high pressure, to clear the throat of these foreign particles.
Answer:
It is an aerobic respiration
Explanation:
It occur in the presence of oxygen
Aerobic respiration produces more ATP than anaerobic
The speed of a sound wave increase as it moves into deep water because sound waves travel faster as salinity decreases, and salinity decreases with depth.
Explanation:
Salinity, Temperature and pressure affect the speed of sound travels in ocean. At a depth of 1000 m in mid latitudes the sound is minimum. Sun makes ocean warm and the temperature become increase in their surface so sound speed becomes fast.
The wave amplitude is related to its carried energy. The wave who amplitude is high carries huge amount of energy and same low amount of amplitude wave carries low amount of energy.