Question: Information: - Detritivores, also known as detrivores, detritophages, detritus feeders, or detritus eaters, are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, vertebrates and plants that carry out coprophagy. By doing so, all these detritivores contribute to decomposition and the nutrient cycles. They should be distinguished from other decomposers, such as many species of bacteria, fungi and protists, which are unable to ingest discrete lumps of matter, but instead live by absorbing and metabolizing on a molecular scale (saprotrophic nutrition). However, the terms detritivore and decomposer are often used interchangeably. - Insects (from Latin ', a calque of Greek ['], "cut into sections") are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. They are the most diverse group of animals on the planet, including more than a million described species and representing more than half of all known living organisms. The number of extant species is estimated at between six and ten million, and potentially represent over 90% of the differing animal life forms on Earth. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, a habitat dominated by another arthropod group, crustaceans. - Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). The animal kingdom emerged as a basal clade within Apoikozoa as a sister of the choanoflagellates. Sponges are the most basal clade of animals. Animals are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance. - The Phlebotominae are a subfamily of the family Psychodidae. In several countries, their common name is sand fly; but that name is also applied to other flies known as sandflies. The Phlebotominae include many genera of blood-feeding (hematophagous) flies, including the primary vectors of leishmaniasis, bartonellosis and pappataci fever. In the New World, leishmaniasis is spread by sand flies in the genus "Lutzomyia", which commonly live in caves, where their main hosts are bats. In the Old World, sand flies in the genus "Phlebotomus" spread leishmaniasis. - The Nematocera (thread-horns) are a suborder of elongated flies with thin, segmented antennae and mostly aquatic larvae, consisting of the mosquitoes, crane flies, gnats, black flies, and midges. - A larva (plural "larvae" ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. - A glassworm is a type of midge larva called Chaoborus . They are also known as phantom midge larvae , because they are transparent . They can be found commonly in lakes all over the world and can be up to 2 centimeters in length . Glassworms are almost entirely transparent , except for pairs of black kidney - shaped structures in the front and the back of the body . These dots are the air sacs . They use these air sacs to migrate up and down in lakes . Glassworms breathe through the end of their abdomen and have two small eyes at the front of their bodies . Chaoborus adults do not bite or suck blood . Larvae live in open waters and even sediments , where there is no oxygen for them to breathe . In some lakes they can be found as deep as 70 m. In these deep anoxic waters they can avoid predation more easily than near the surface . They get around the fact that a normal air filled invertebrate tracheal system would fail at these depths by having it reduced to just two air sacs . They are predaceous , and catch their prey with their modified prehensile antennae . They look somewhat like mosquito larvae , on which they prey and frequently destroy in large numbers . Chaoborus are considered opportunistic eaters , as their main diet consists of Copepods and Cladocerans , though they are believed to prefer copepods . However , they tend to select whatever prey enters its strike zone as it is not known for chasing prey . Prey selection also varies between species as head and mandible size dictate maximum prey size . Their main predator is fish , which can cause a behavioral response due to light factors influenced by their presence . This fish factor causes an increase in the average depth the individuals can be found at . This vertical migration behavior is believed to be a chemical reaction , rather than a visual or mechanical . The simplest way to collect Chaoborus larvae is by a plankton net . Glassworms are very easy to store if the water is kept cold and aerated . They are very tolerant to bad water conditions... - Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. Some insects, fishes, amphibians, mollusks, crustaceans, cnidarians, echinoderms and tunicates undergo metamorphosis, which is often accompanied by a change of nutrition source or behavior. Animals that goes through metamorphosis are called metamorphoses. Animals can be divided into species that undergo complete metamorphosis ("holometaboly"), incomplete metamorphosis ("hemimetaboly"), or no metamorphosis ("ametaboly"). - Midges are a group of insects that include many kinds of small flies. They are found (seasonally or otherwise) on practically every land area outside permanently arid deserts and the frigid zones. The term "midge" does not define any particular taxonomic group, but includes species in several families of Nematoceran Diptera. Some midges, such as many Phlebotominae (sand fly) and Simuliidae (black fly), are vectors of various diseases. Many others play useful roles as prey items for insectivores, such as various frogs and swallows. Others are important as detritivores, participating in various nutrient cycles. The habits of midges vary greatly from species to species, though within any particular family midges commonly have similar ecological roles. Given the information, choose the subject and object entities that have the relation of 'taxon rank'.
Answer:
glassworm , genus