Examlex
What characteristics of flat worms allow them to use diffusion to excrete waste materials and take up oxygen (and for some kinds, to absorb nutrition from their hosts)?
Constrained
Restricted or limited in one's actions, freedoms, or capabilities.
Self-assured
Characterized by confidence and certainty in one's abilities or qualities, often leading to resilience and assertiveness.
Responsibility
The state or fact of having a duty to deal with something or of having control over someone.
Open Adoptions
An adoption process where there is some level of contact or information exchange between the biological and adoptive families.
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