The big difference is growth. Normal cells stop growing when there are enough in one spot.
For example: When you get a cut, cells go to heal the wound, and the cells grow. But when the work is done, the cells stop growing.
But, cancer/tumor cells (not at a wound) grow and grow even when touching the first layers of muscle and skin. This would be what creates the lump. So, these bad cells are very overgrown and practically swollen cells.
:)
Answer:
<u><em>Population</em></u> means for example: "The forest is <u><em>populated</em></u> by savage animals"
Explanation:
<u><em>Population</em></u> exactly means just that a town is <u><em>populated</em></u> by humans, or if the forest is <u><em>populated</em></u> by savage animals that will kill you on sight.
Hope this helps!
C. soil erosion is your answer :)
Answer:
D. They live in freshwater, are free-living and reproduce sexually and asexually.
Explanation:
Most planarians are found in freshwater. Since they reproduce through fission, they reproduce asexually. However, since they are heteromorphic, they also reproduce sexually.
The process of sexual reproduction includes fusion of female and male gametes coming from both the parents. In the process of sexual reproduction, a new individual is produced due to the combination of two haploid gametes, one from the female parent, and the other coming from the male parent.
The importance of sexual reproduction:
1. The joining of DNA from two distinct individuals results in the increase in the genetic variation in the offspring.
2. This further results in diversity in the population that assists in natural selection.