Is the octopus protected and why is it protected?

Is spirogyra harmful to humans? What is the word for getting rid of an infestation? Are dragonfly legs all the same size? What do ground moles need to survive? Do antlions eat spiders? A population of beetles are kept in a controlled ecosystem. No beetles are allowed to enter or leave. The graph below shows the population of beetles. Which best describes the ecosystem at Point A? Do we call young bees kittens or house bees? After a hive is destroyed will there be a few bees from that hive still hanging around and if so for how long? How does a flea acquire blood? Can you get roundworms from your pets? Are there blond lightning bugs? What insects are bugs? When you flick an ant off your arm does it die? How do worms benefit to the real world? Do birds eat hornets? How do you prevent diseases carried by mosquitoes? How has neutralization reactions helped us from bee stings and wasp stings? Where do fruit flies go if they don't go to the traps but they disappear? Where in the human or animal body the adult bilharzia worms live? Does a black widow spider shed?