The Bilateria include the protostomes—in which many groups of invertebrates are found, such as nematodes, arthropods, and molluscs—and the deuterostomes, containing both the echinoderms as well as the chordates, the latter containing the vertebrates. Life forms interpreted as early animals were ...
Tree stumps are a potential bioenergy resource to replace fossil fuels and meet the targets for reduced CO2 emissions. However, the effects of stump harvesting on wood-dependent organisms are poorly known. This study assessed the abundances of macroarthropods, especially non-coleopteran groups, in ...
Insects and Mites of Medical and Veterinary Importance: A Broad Overview Arthropods include many species of medical or veterinary importance. Among them, several are responsible for the transmission of some dangerous diseases for humans, such as malaria, Chagas disease, leishmaniasis, African trypanosomi...
刷刷题APP(shuashuati.com)是专业的大学生刷题搜题拍题答疑工具,刷刷题提供Which of the following measures are considered to be used for arthropods control:( )A.environmental managementB.regulation management.C.biological measures and genetic measuresD.physi
What animal groups are diploblastic? Coelenterates like jellyfish, corals, sea anemones and comb jellies are animal groups which are diploblastic. They have a body wall composed only of two layers, ectoderm and endoderm. Classification of animals on the basis of symmetry and number of germ ...
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Fish probably originated in the oceans, and our first records of them are in marine rocks. However, by the Devonian Period (408 million to 362 million years ago), they had radiated into almost all available aquatic habitats, including freshwater settings. One of the groups whose fossils are ...
Every living thing on Earth is classified, organized and identified according to a system of hierarchical taxonomy. In this system, there are eight different levels of classification, starting with the broadest group and narrowing to an exact species....
which ate detritus or algae. The Burgess Shale formation also has fossils of many extinct representatives of modern animal groups. For example, a well-known Burgess Shale animal called Sidneyia is a representative of a previously unknown group of arthropods (a category of animals that includes inse...
are in marine rocks.However, by the Devonian Period (408 million to 362 million years ago), they had radiated into almost all available aquatic habitats, including freshwater settings.One of the groups whose fossils are especially common in rocks deposited in fresh water is the lobe-finned fish...