Answer:
Henri Becquerel and the Curies worked with uranium, radium, and polonium, all of which give off radiation.
Explanation:
Henri Becquerel and Marie Skłodowska-Curie discovered the process of radioactivity. They were awarded Nobel prize for their work. Radioactivity is the process in which an unstable element emits energy in the form of radiation. This process also produce a lot of heat. Radiations are very harmful for human health however they have wide applications in modern technology.
Answer:
apices
Explanation:
The growth occurs by single apical cell in initial stages, But mature plants have several scattered apical cells on the margin so growth also takes place at many points..
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Answer: population density
Explanation:The number of individuals living within that specific location determines the population density.
They say how an enzyme perfectly fits into its substrate is alike a "lock and key".
Only one specific enzyme can fit a specific substrate.
