How long can humans survive without food or water if they're bed ridden?

Do animal shelters take homemade blankets? How can I find a suitable cat ramp for bed that will help my feline friend easily access and enjoy their favorite sleeping spot? What is national animal of Mongolia? How does a foal find food and where does it live? Where do the polecats live? What animal needs a special place to nest? What animal looks like a crocodile and an alligator? Do nymphs eat berries? What does it mean if my dog's ears are warm? Do enzymes slow down reactions in your body? Which has mouth but never eats? What is salenisation? Is it safe to give my cat his antibiotic 2 hours earlier than the scheduled time? What is a biological clock of a plant influenced by? What animals and plants lived in the neogene period? How do some animals and help Rikki in his war against nag and nagina? What are some safe and delicious recipes for homemade dog eggnog during the holiday season? What should I do if I notice a white bald spot on my dog's coat? What are the potential causes and treatment options for blisters around a surgical incision? What is used as evidence for the idea that the domain Eukarya evolved from unicellular organisms?