You could use a pair of pliers to either cut or bend wire. Wire cutters would be inadvisable for the bending task.

Algae (a Latin plural) are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms are called seaweeds. They are photosynthetic, like plants, and "simple" because they lack the many distinct organs found in land plants. For that reason they are currently excluded from being considered plants.