Across
1
Group of similar cells
5
Disturbance that transfers energy
7
Nerve cell in the brain
8
The Red Planet
Down
2
Infectious microscopic agent
3
Mass per unit volume
4
Blocking of light by a celestial body
6
Unit of electric potential
Group of similar cells
Disturbance that transfers energy
Nerve cell in the brain
The Red Planet
Infectious microscopic agent
Mass per unit volume
Blocking of light by a celestial body
Unit of electric potential