Which Type of Radiation Is the Least Dangerous to Humans

question 29

Multiple Choice

Which type of radiation is the least dangerous to humans?

• A) Positrons
• B) Neutrons
• C) Alpha
• D) Beta
• E) Gamma

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Definitions:

Homoplasious Trait

A trait shared by multiple species or individuals due to convergent evolution, not because of a common ancestor.

Monophyletic Group

A set of organisms that includes an ancestral species and all its descendants, representing a single branch on the tree of life.

Paraphyletic

Paraphyletic describes a group of organisms that share a common ancestor, although the group does not include all the descendants of that common ancestor.

Phylogenetic Systematics

A method of classifying living organisms based on their evolutionary relationships, using traits inherited from common ancestors.