Although paracrine signaling elicits a diverse array of responses in the induced cells, most paracrine factors utilize a relatively streamlined set of receptors and pathways. In fact, different organs in the body -even between different species - are known to utilize a similar sets of paracrine factors in differential development. The highly conserved receptors and pathways can be organized into four major families based on similar structures: Fibroblast growth factor family, Hedgehog family, Wn
Tuition is what colleges charge for the instruction they provide. Colleges charge tuition by the units that make up an academic year, such as a semester or quarter. Tuition at public colleges is often a bargain for state residents, but not for out-of-staters, who often pay double the tuition of residents.
A student loan is a type of loan designed to help students pay for post-secondary education and the associated fees, such as tuition, books and supplies, and living expenses. It may differ from other types of loans in that the interest rate may be substantially lower and the repayment schedule may be deferred while the student is still in school.