Any living thing. It could be a bird, fish, anything with life.
The name of the tear collecting structure under the skin near the bridge of the nose is the lacrimal sac. The lacrimal sac is part of the lacrimal drainage system or the lacrimal apparatus. The tears are produced in the lacrimal gland and will drain through a hole near the lower palpebral conjuntiva called the puncta which serves as the entrance in the lacrimal system. The tears will now enter the canalicula which serves as the passage way from the puncta to the lacrimal sac. Lastly, the tears in the lacrimal sac will drain to the nasolacrimal duct and to the nose. This also explains why we get runny nose when we are crying.
Primary succession can occur in essentially lifeless areas or regions in which the soil is incapable of sustaining life as a result of such factors as lava, sand dunes, or rocks left from a retreating glacier.
<span>Sensory evaluation makes use of the remarkable virtuosity and range of the human senses as a multi-purpose instrument for measuring the sensory characteristics of foods. </span>
Development. there is a branch in biology called Developmental biology<span> is the study of the process by which organisms grow and </span>develop. Moderndevelopmental biology<span> studies the genetic control of cell growth, differentiation and "morphogenesis," which is the process that gives rise to tissues, organs and anatomy.</span>
