kinetic energy is needed by the molecules in order to escape from the surface.
All the water molecules in the liquid are moving randomly due to the presence of some energy in it. Some of the molecules have more kinetic energy due to absorption of heat energy from the surrounding environment.
Due to high kinetic energy, these molecules move enough to escape the surface of the liquid. This is called boiling point. This makes the liquid become gas so we can conclude that kinetic energy is needed by the molecules in order to escape from the surface.
Learn more about boiling point here: brainly.com/question/40140
Learn more: brainly.com/question/25893146
Answer:
a fertilized egg- zygote
separation of two ends of an old cell- cytokinesis
union of egg and sperm- fertilization
egg-producing organ in lower plants- archegonium
The ancestors of birds were most likely arboreal.
<span>Having gliding surfaces is advantageous in arboreal animals because it means less likelihood of dying due to a fall. You'll notice that plenty of arboreal animals today have gliding surfaces. </span>
<span>In the ancestors of birds, the gliding surface just happened to stretch from the "fingers" down to the body, setting up for control of the glide, and for further refinement with elongation of the fingers and arms. With this, the animals were not just saving their lives when falling, they could glide from one tree to another to look for food. </span>
<span>A similar process likely happened in the ancestors of bats. </span>
<span>Don't ask me about pterosaurs or insects, 'cause I don't know.</span>
