The ability for cancer cells to divide
indefinitely is made possible because Cancer cells rebuild their telomeres
after every cell division.
At each end of the chromosome, there is a
region of repetitive nucleotide
sequences, this is called telomere and when a cell begins to become cancerous,
it divides more often. Telomeres are crucial for the survival of cancer
cells and they are
maintained by an enzyme called telomerase.
Answer:
C. habitat fragmentation and preserve design.
Explanation:
The SLOSS debate involves issues relating to habitat fragmentation and preserve design.
Answer:
The correct answer is - option D. excellent insulators.
Explanation:
To keep internal body temperature and maintain homeostasis, there is a layer of fats just underneath the skin that is of lipids. Lipids likewise give insulation from the cold and freezing temperature to plants and animals. the lipid tail of the atom is hydrophobic as the water is polar.
They are excellent insulators as they have thick fat layers that trap air inside. For instance, they help keep oceanic mammals and bids dry due to their water-repulsing nature.
Thus, the correct answer is - option D. excellent insulators.
Line B as it has a lower activation energy, showing that it needs less energy for the reaction to take place
The process of osmosis is the movement of water through a selectively permeable membrane from an area of higher concentration to an area of lower concentration.
If 1% sugar solution is placed in pure water, then there would be a higher concentration of water molecules outside the cell compared to inside the cell. The solution outside the cell would be hypo-tonic (containing fewer solute molecules than inside the cell). Water will move into the cell by inward osmosis and the cell would then swell.
