shittah tree A tree that furnished the precious wood of which the ark, tables, altars, boards, etc, of the Jewish tabernacle were made; now believed to have been the wood of the acacia Seyal, which is hard, fine grained, and yellowish brown in colour. Origin: Heb. Shittah, pl. Shittim...
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..
