横向
1
Group of similar cells
3
Basic unit of life
5
Unit of heredity
6
Ball of burning gas in space
8
Glass that splits light into spectrum
10
Nerve cell in the brain
纵向
2
Our home planet
3
Solid with repeating atomic pattern
4
Curved glass that refracts light
7
Element found in all living things
9
Measure of matter in an object