Cell walls are made out of cellulose and they give a sturdy structure to the cells (if you notice they have a rectangular shape)
Answer: Option D
Explanation:
A fossil can be defined as the imprint or plant or animal that is preserved in the environment which can be used to known the organism or environment at that time.
The fossil formation takes place when the organism is trapped in ice, trapped in sap or it gets buried in fine sediments at the bottom of the lake.
In these cases the animals dies and remains as it is to form fossil but if incase the animals is completely decomposed by the bacteria and fungi then it cannot be transformed into a fossil as there will be no remains left.
The correct answer is option D
Technique b is more advantageous because if they used technique a. The bees that pollinate the crops would die and the crop would not make more seeds. Hope this helps(:
Energy is always lost as energy is moved from one level to another. ... The loss of energy due to the second law of thermodynamics results in a pyramid with a large base and a 10% ratio between levels.
