Answer:
Microtubules are found in cilia and flagella .Microtubules are the thickest type of cytoskeleton fiber .Structurally they are hollow tubes that can dissolve and reform very quickly.Functionally, they provide movement to the to the organelles and pull the chromosome to their poles at the time of cell division
Explanation:
Answer: Botulinum toxin
Toxins are non-living
biological and chemical agents produced by living microorganisms from animals
and plants that can cause harm to humans, plants and animals. An example of
toxin is botulinum toxin produced by the bacterium Clostridium, which is a
neurotoxic protein that prevents the release of the neurotransmitter
acetylcholine from axon endings at the neuromuscular junction and causes
flaccid paralysis.
Moreover, toxin are more
closely related to chemical warfare agents that can only affect those who are
exposed to the agent and that they are not considered as transmissible disease.
Answer:
C
Explanation:
Because the student is observing the effects on the population, so it would make more sense to add more fish to the tanks to see how they would get effected.