This might help
Jatropha<span> plant seeds which are very rich in oil</span>
None of the above... Ingumentary system is the one that regulates body temperature. The ingumentary system is skin, hair , sweat glands and nails
<span>The gene sequence containing an operator, promoter and repressor is known as an operon. These genes are called as structural genes. the operon is regulated by the presence/absence of the inducer such as glucose/lactose. It may also be a constitutive operon, which works all the time.</span>