Sir Darwin proposed a theory on evolution and people began questioning his theory
Answer:
Certain infectious agents, including viruses, bacteria, and parasites, can cause cancer or increase the risk that cancer will form. Some viruses can disrupt signaling that normally keeps cell growth and proliferation in check.
Explanation:
H. pylori is the first bacterium to be termed a definite cause of cancer in humans by the International Agency for Research on Cancer.
Answer:
Answer is true.
Explanation:
A cell membrane is considered as selectively permeable because it controls or regulates the type of molecules that can pass through it. Substances of small molecules are allowed by the cell membrane while substances with large molecules are not allowed to pass through. For example , amino acids and simple sugar can easily pass through the cell membrane while protein and starch can't pass through it.
The cell membrane is considered or described to be boundary or border between the interior part and exterior part of the cell.
Diffusion refers to the random motion of particles from a medium of higher concentration to a medium of lower concentration.
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Subatomic particle, Element, Molecule, Compound
