Why aren't there many organisms living on the sandy beach?

What do you call a group made up of similar species? What are native animals in Saudi Arabia? What kind of wild animals did the maroons eat? How long does a flatworm live? Is a Shark steam cleaner a good reliable product like they show it to be? How was there a baby in blue lagoon? How do animals return the water from their food back to the environment? Members of a species can recognize mates using what? Why does my dog steal socks and what can I do to prevent this behavior? Can dogs have pinto beans as part of their diet? Why is it that my cat won't leave the room? How can I keep my yard odor away? What eats lavender plants? Plants and animals that live in the desert that begin with the letter g? How do nematode obtain food? Do floods pose a threat or danger to wildlife such as plants and organism provide evidence? How can you get rid of mioscuiteo bites? What are the possible causes and treatments for white film on goldfish? Can dogs have chicory root in their diet? What is a celophopod?