Answer:
cell membrane
Explanation:
Single cell organisms like the bacteria depend mostly on diffusion for gaseous exchange. They take in food that does not require complex digestion processes. The cell membrane is selectively permeable and allows absorption of nutrients like glucose that have molecules of small size.
The industrial revolution is brought about by the enclosure movement through increasing the : B. Production of wool
During industrial revolution, a lot of machines that could increase the efficiency of the production were created
hope this helps
Answer:
Explanation:
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The correct option is: b. mitosis is not regulated in tumor cells. Cancer cells are malignant tumor cells and cancer is a disease of mitosis where the cell divides uncontrollably.
The tumor cells use mitosis to replicate and and cell cycle checkpoints are ignored so the mitosis is unregulated. So option c. tumor cells use meiosis to replicate is incorrect.
Tumor cells contain abnormal number of chromosomes so option d. is incorrect as it contains chromosomes.
Due to aneuploidy of tumor cells it cannot be specifically haploid or diploid so option a is incorrect.
