Answer:
The cell theory developed most quickly due to the invention of the microscope. Robert Hooke was the first scientist who saw cells in cork. After this discovery, a wide numbered of researches were made and cell theory was developed. The basic cell theory explained that how every living thing was made up of cells. After this, a lot of additions have been made in the cell theory and today the cell theory is known to have five basic postulates.
This would be a synonymous question as to, "why do cells not just grow big in size?"
The main reason would as to why cells have to be small, not just during cell reproduction or cell division, but all throughout their cellular life, is that the cell membrane or what they call as outside of the cell, can't sustain and maintain the insides of the cell if ever the cell grows bigger. The cell membrane is responsible in transporting food and oxygen to the insides to promote the growth and ready them for reproduction. The insides grow faster than the outside which is why there is a need to divide.
Answer:
adsorption, penetration, biosynthesis, maturation, release
Explanation:
The virus after infecting the cell produces several progenies which after reaching a certain number cause the lysis of the cell and are then released out from it. This process of entering the host by the virus and then lysing the cells to be released is termed as a lytic cycle.
There are 5 stages involved in this lytic cycle:
1. Adsorption - when the virus finds its attachment site on the bacteria it gets attached to the viral receptor and then is adsorbed on the bacteria, this is the first step required to gain entry into the host.
2. Penetration - once the virus is attached to the host the next step is to penetrate it and enter inside the cell. For this, the virus secretes lysozyme and then inserts its genetic material inside the cell.
3. Biosynthesis - this stage involves the utilization of the enzymes and nucleotides of the host to make up the DNA of the phage.
4. Maturation - once the phage DNA is made the next stage is to assemble the phage DNA with the capsid and this is termed as maturation.
5. Release - this step involves the breakage of the plasma membrane of the host cell and the release fo the phage particles.
<span>Solar and wind is the list that contains the only examples of renewable sources of energy. Solar energy is generated by using sunlight while wind energy is generated by using wind turbines. Hence both of these energies does not require any form of burning of fuels and hence are renewable sources of energy.</span>
A stalactite grows towards the cave floor
A stalagmite grows towards the cave ceiling
A sinkhole is where a cave has collapsed because of gravity
A swallow hole us where a stream disappears into the ground
