Answer:
Row 2
Explanation:
It is a food chain, not a food web. It is more complex than the food web.
The primary source of energy for almost every ecosystem on Earth is the sun
The correction is B.
The respiratory system is the one that is responsible for transportation of oxygen from the outside to the lungs and the reverse transportation of carbon dioxide from the body to the atmosphere. The muscular system is responsible for the contraction of muscles around the air passages during respiration. These two systems are negatively affected in asthma patients during respiration.
Physical Factors:Physical factors that affect population distribution include altitude and latitude,relief,climate,soils,vegetation,water and location of mineral and energy resources.
A Fragment of strand of nucleic acids isolated from silk moth species containes the base sequence CAGACT. these strands form DNA.
