Across
1
Unit of heredity
4
Nerve cell in the brain
5
Reddish electrical conductor
7
Substance with pH above 7
9
Path of a planet around the sun
11
Unit of power
Down
1
Precious yellow metallic element
2
Tissue that contracts for movement
3
Biological catalyst
6
Positive particle in nucleus
8
Infectious microscopic agent
10
Unit of force
12
Chemical element in table salt