soci
mem
de
sub
oligist
100

unfriendly; not enjoy company of others

antisocial

100

to honor the memory of

commemorate

100

to make less, to become smaller

decrease

100

to move, or be pushed under water

submerged

100

what is the scientist of animal life 

zoologist

200

people, human beings living and working as a group or a community

society

200

a monument or statue built in memory of a person or an event

memorial

200

the numeral below the line, or to the right of the line, in a fraction

denominator

200

to go down, recede, settle, sink to a lower level

subside

200

what is the scientist of emotions and behavior

psychologist

300

A club, society, or organization of people with similar interests

association

300

an object that reminds one of a special time or place

memento

300

to come down, to go from a higher to lower place

descend

300

to bring under control, to quiet; to conquer

subdue

300

what is the scientist of life 

biologist

400

to break the ties between, separate from, stop associating with

dissociate

400

a written or typed note to help one remember somthing

memorandum

400

downhearted, in low spirits, unhappy

dejected

400

the minimum amount of sustain life

subsistence

400

what is the scientist of soil and rocks

geologist

500

an expert in or student of the development, structure, and functioning of human society.

sociologist

500

an object that keeps a memory of something alive

remembrance

500

to lower in rank or position, to move down or back

demote

500

the title or heading for one section of an outline or paper

subheading

500

what is the scientist of fossils of prehistoric animal and plant life

paleontologist