The First Land Plant with a Vascular System Was the Ancestor

question 70

Short Answer

The first land plant with a vascular system was the ancestor of present-day ________.

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Definitions:

Childhood Depression

A serious mood disorder characterized by persistent feelings of sadness, hopelessness, and disinterest in children.

Electroconvulsive Therapy

A psychiatric treatment in which seizures are electrically induced in patients to provide relief from severe mental disorders, particularly major depression.

Separation Anxiety Disorder

A disorder characterized by excessive fear or anxiety about separation from attachment figures beyond what is expected for the individual's developmental level.

Excessive Anxiety

involves persistent and overwhelming worry or fear that is disproportionate to the actual danger, significantly impairing daily functioning.