Crack
If frank is using a drug that causes addiction in nearly 75% of those who use it, he is probably ingesting crack.
Crack is a relatively cheap, extremely addictive form of cocaine which is usually smoked through a crack pipe. Crack is highly used and available in a rock form that is usually white, cream, tan, or light brown. Crack is extremely concentrated and addictive. It is possible for an individual to become addicted to it after its first use. When crack is smoked, its effects take place under a minute and lasts within 30 to 60 minutes.
Answer:
The correct answer is a cancerous tumor.
Explanation:
Density-dependent inhibition refers to the phenomenon in which the crowded cells stop proliferating. In the process, the group of cells present in a region force competition for space, nourishment, and growth factors. Thus, when the cells are clumped together, they receive the signals to stop dividing further. Thus, in density-dependent inhibition, when the density is high no division of cells takes place.
Density-dependent inhibition is a process in which the growth of the cells is restrained to a specific limit of density, after that the growth gets prevented, probably due to cell-cell contacts. On the other hand, the tumor cells generally do not possess density-dependent inhibition, due to this, the cancer cells show unlimited growth without getting ceased. Therefore, in the given case, the source of the tissue sample is primarily a cancerous tumor.
