This colorized scanning electron micrograph shows uncoated sponge spicules from a South African sponge. Spicules provide structural support and deter predators. The image was taken with the VcD (backscatter) detector, using beam decelleration
Image collected on FEI instrument: Nova NanoSEM Family using Magnification: 2,000x Horizontal Field Width: 149 μm Voltage: 2 kV Detector: vcd Spot: 2 nA Working Distance: 6.3mm
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