A gateway substance is something that may be menial but could lead to something bigger, an example is weed in the drugs world, weed is not hard to get and is usually a gateway drug to stronger types of drugs and potentially more dangerous
The right option is; unsecured loan
Zachary's student loans are an example of unsecured loan.
An unsecured loan is a type of loan that is given and supported only by the borrower’s reliability without being protected by any collateral. If an individual is unable to pay the loan, the lender cannot take his or her property. Types of unsecured loan include student loans, credit cards and personal loans.
Sickle cell disorder is an inherited blood disease featured by defective hemoglobin. The condition affects the hemoglobin, or the red blood cells, and their tendency to conduct oxygen. The normal hemoglobin cells are round, smooth, and flexible, and thus, they can travel via the vessels in the body effortlessly.
On the other hand, the sickle cell hemoglobin cells are sticky and stiff and form a sickle, C shape, when they lose their oxygen. These cells combine together, and cannot effortlessly move through the blood vessels.
<span>For each count, only one digit changes.</span>