mainly asexually
Tropical fish love black worm.
The scientific name for a blackworm is Lumbriculus variegatus.
Californian Redwoods reproduce from seed.
Blackworms distribute nutrients (from food) and oxygen through their blood vessel to the rest of its body - hope this helped!
If you're asking about California black worms, you can feed them sinking pellets or flakes, any fish food would be OK when the food start to spoil then the worms will eat it, just be careful no to over feed.
Why one or both ends of some of the blackworms are lighter in color than the rest of their bodies
We just did an experiment on this, and our blackworms regrew their heads within 6 days.
Black worms unusual movements are a means of escape from predators. They will attempt to escape, either by swimming in a helical (cork-screw) fashion, or by reversing its body.
Wet moist soil underground is the best habitat for worms
You have to cut the worm in the middle of the body between the light and dark brown spots also known as the clitellum.
Earthworms and Blackworms both live in water and soil. also they breath through their skin.
The California condor can live to be over 50 years old. They are able to reproduce when they are 6 years old and lay one egg per year.