"In species with internal fertilization -- like mammals, birds and insects -- sperm fertilize eggs inside the female's body, while in species with external fertilization -- like sea urchins and many ...
The meaning of INTERNAL is existing or situated within the limits or surface of something. How to use internal in a sentence.
INTERNAL definition: 1. inside the body: 2. inside a person's mind: 3. inside an object or building: . Learn more.
of or relating to the inside or inner part: the internal organs of the body. Government of or relating to the domestic affairs of a country:[before a noun] a bureau of internal affairs.
Definition of internal adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Internal is used to describe things that exist or happen inside a particular person, object, or place. The doctor said the internal bleeding had been massive.
Adjective internal (comparative more internal, superlative most internal) Of or situated on the inside. We saw the internal compartments of the machine. (medicine) Within the body.
Define internal. internal synonyms, internal pronunciation, internal translation, English dictionary definition of internal. adj. 1. Of, relating to, or located within the limits or surface; inner.
In anatomy and zoology, in general, inner or interior; not superficial; deep-set; away from the surface or next to the axis of the body or of a part: as, the internal carotid or iliac artery; the internal head of the gastrocnemius.
June 21 (UPI) --For every animal, sperm perform the same function -- egg fertilization. Yet sperm size varies dramatically from species to species. Most studies on the topic have focused on how sperm ...