Across
1
Group of similar cells
3
Biological catalyst
6
Unit of energy
8
Glass that splits light into spectrum
Down
2
Nerve cell in the brain
4
Infectious microscopic agent
5
Basic unit of life
7
Second lightest element
Group of similar cells
Biological catalyst
Unit of energy
Glass that splits light into spectrum
Nerve cell in the brain
Infectious microscopic agent
Basic unit of life
Second lightest element