Answer:
cell, tissue, organ, organ system
Explanation:
is the right structure because cell is the smallest and creates tissues then group of tissues forms organs and a group of organs are organ system
Dr. Jones discovers that the enamel on a new patient's anterior teeth is mottled and pitted, but the patient doesn't have any caries. Most likely, thedamage is the result of DENTAL FLUOROSIS.
<span>a. take a summer and winter courses</span>
Answer:
False
Explanation:
A heart arrhythmia is an irregular heartbeat.