Answer:
The answer is A. The absence of soil.
Explanation:
Primary and secondary succession are two types of ecological succession (succession of colonization of species in an ecosystem in a barren or destroyed habitat).
Primary Succession:
Primary succession is the the colonization of a barren area of land that is completely devoid of soil.
Secondary succession:
Secondary succession occurs in an area with ample soil but which has been destroyed by human intervention or natural disasters such as a wild fire or volcanic eruption.
Answer:
lignified vascular tissue
Explanation:
Stems of Vascular plants are made of vascular tissues and lignin which gives it is characteristics stiffness and the ability to grow tall to access more light and air.
Myelin sheaths are found on the outside of nerve cells. They protect the sensitive axons underneath like how insulation protects wires.
Answer:
True
Explanation:
A car is designed to utilize fuel as its source of energy. This fuel contains chemicals, which the engine of the car breaks down via combustion to facilitate its functioning. Kinetic energy is a form of mechanical energy produced as a result of motion. A moving object, individual etc uses kinetic energy to do so.
The fuel (gasoline) being supplied into the car's engine makes the car able to move, hence, we can say that the chemical energy present in the fuel is being converted to kinetic energy (observable in the car on motion) with the release of heat by the engine.
Answer:mitochondrion
Explanation: They are membrane bound cell organelles that generates most of the chemical energy needed to power the cell’s biochemical reaction .
