Answer:
All of the terms are explained in the pictures.
The last two terms are written in the explanation section.
Step-by-step explanation:
Tachycardia -- it is a condition that is connected to the activity of heart where a normal heart rate is in disorder and the heart is beating faster in the state of resting.
It's normal that heart beats are faster when a person is exercising or during some other activities, or some traumas and illness.
This condition can lead to heart attack, stroke or heart failure.
Fission -- is a noun in English language and it represents the act of splitting something or dividing it in two or more parts.
It comes from Latin language, from the verb FINDERE ( to split ) --> fissio -- > fission ( English language, 17th century )