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Extra resources for A Closer Look at the Animal Kingdom (Introduction to Biology)
An easy ant farm may be made up of items of glass outfitted into 4 sections of grooved wooden and set on a wood base. Fill the assembled farm two-thirds complete with soil stumbled on close to an anthill. A colony needs to include a queen and will even have eggs, larvae, pupae, and parasites, in addition to the opposite ants. Ants may be fed bits of floor red meat, useless bugs, bread crumbs, and watered honey. The cork or sponge stoppers may be saved wet; ants should have moisture. Encyclopædia Britannica, Inc. The social constitution of the colony has resulted in a number of strange residing preparations. Ants will be very hospitable. a few species reside as site visitors with different ants or bugs; a few ants host different bugs as visitors. a couple of species dwell with parasites—insects or different small animals, resembling mites, spiders, caterpillars, and beetles, which are fed and sheltered via the colony yet that offer not anything in go back. Hospitality and cooperation are just one element of the ant’s social personality, notwithstanding. it's also able to warlike habit. Ants are the single animals except people that keep on prepared conflict, frequently for the seize of slaves. The dependence on slaves is obviously glaring within the amazon ants. as a result of actual barriers, they're inefficient staff. They use different species of their colony to take care of their younger, extend the nest, and do the opposite chores of the employee caste. The ant’s competitive nature is usually noticeable in robberies and quarrels over barriers, which may end up in feuds lasting for years among assorted colonies of ants. A sea cucumber scavenges for nutrition alongside a rock within the Mediterranean Sea, close to Kas, Turkey. Tarik Tinazay/AFP/Getty pictures bankruptcy four ANIMALS WITH BACKBONES the main advanced individuals of the animal nation belong to the phylum Chordata. so much contributors of this phylum are vertebrates—that is, they've got a spine. teams of primitive chordates referred to as tunicates and cephalochordates, besides the fact that, do not need a spine. the foremost subdivisions of the vertebrates are the fish, amphibians, reptiles, birds, and mammals. participants of this phylum own the subsequent constructions at a few interval in their existence, both as embryos or as adults: a notochord, a nerve tube, and pharyngeal gill slits or pouches. A notochord is an inner helping rod extending the size of the physique. it's present in the embryos of all chordates, together with humans. purely the main primitive chordates, reminiscent of the amphioxus, or lancelet, the lamprey, and the hagfish, hold the notochord as adults, notwithstanding remnants of the notochord also are found in sharks. In different chordates, comparable to amphibians, reptiles, birds, and mammals, the notochord is changed in the course of improvement of the embryo via a bony column of vertebrae, which provides the column and the animal flexibility. the key teams of vertebrates contain fish, amphibians, reptiles, birds, and mammals. Encyclopædia Britannica, Inc. The nerve tube constitution lies within the midline of the physique at the most sensible (dorsal part) of the notochord.