Answer:
The body changes with aging because changes occur in individual cells and in whole Organs. These changes result in changes in function and in appearance.
Antibiotic resistance is problematic due to its effects on society. The bacteria can spread and infect humans and animals. This can often be more difficult to treat because of the non-resistant bacteria.
Infectious disease is a sickness that can be passed one to someone else, like the flu. a lifestyle disease are sicknesses that you can not get or give to other people.
Use the chem reference table to figure it out
Table R states that an alkene (double bonded carbon) has a general formula of Cn H2n so look for any formula that has 2x the number of hydrogens then carbon