Examlex
What capability did the development of a vascular system provide?
Older Brothers
Typically refers to male siblings who are born before other children in a family, often associated with roles of protection, mentorship, and influence in the sibling relationship.
Prenatal Development
Prenatal development refers to the process of growth and development within the womb from conception to birth.
Homosexual Behavior
Sexual or romantic activities and attractions between individuals of the same sex or gender identity.
Estrogen
A group of sex hormones crucial for the development and functioning of female reproductive tissues, and also involved in various other body processes.
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