Answer:
Dehydration Synthesis
Explanation:
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Nuclear fuel is used to create energy by heating water that creates steam that then turns turbine generators that produce electricity. This process is conducted in large facilities capable of accommodating the heat and steam that is created in such a process.
Answer : B) In step 2, there was a chemical change which was observed in sugar.
Explanation : In A step 2 there was a physical change that was seen. By just boiling the dissolved salt solution salt was obtained. Therefore, it is a physical change. In B step 2 there was a chemical change seen as sugar solution was thickened and turned brown. It was not obtained in its original form; there was a chemical reaction that took place during sugar evaporation. As chemical change is the one where the reaction is irreversible.
Therefore only in B step 2 there was a chemical change that was observed.
Answer:
It is an eukaryotic cell.
Explanation:
In a eukaryotic cell, the nucleus is the most prominent cell organelle which can be seen through a microscope. Eukaryotic cells contain a definite or true nucleus because it is enclosed by a nuclear membrane. Within the nucleus, a dense body called nucleolus is present in the nucleoplasm. Thus, it can be inferred that the given cell is a eukaryotic cell.
Answer:
The correct answer is - relative refractory period.
Explanation:
The relative refractory period is a period that stimulates a secondary response if the stimuli are greater than the normal. It occurs when partial repolarization after a nerve fiber fired.
The relative refractory period is one of the two types of the refractory period which is the relative and absolute refractory period. In the absolute refractory period, it is not possible to activate another action potential in membrane.
Thus, the correct answer is - relative refractory period.