Answer: Reverse the position of two cells from opposite poles as the blastula stage allow development
Explanation:
An experiment should be performed, this experiment will help to discover the interactivity that exists between cells before reaching the fetal period. The experiment ought to also influence the location of the cells.
Answer:
Potential energy is the energy of an object due to its position, while kinetic energy is energy due to its motion.
Explanation:
Answer:
Incomplete decomposition of organic matter due to a lack of oxygen. (Ans D).
Explanation:
Coal is known as the mostly carbon with containing different amounts of oxygen, nitrogen, sulfur, and hydrogen. Coal is formed when Incomplete decomposition of dead plant matter due to a lack of oxygen occurs. In-plant matter because of the pressure, and heat-generating physical, and chemical changes occur which lead to force out oxygen, and carbon deposits left. so, in this time the plant matters become coal.
Coal is divided into three main types which are based on the percentage of hydrocarbon, oxygen, and carbon occurs in the coal.
1) Anthracite coal.
2) Bituminous coal.
3) Lignite coal.
The embryo sac which present in egg shell protects it
