An invertebrate is any animal that does not have a backbone or vertebral column. There are over 30 different phyla of invertebrates. Examples include worms, jellyfish, clams and oysters, octopuses, insects, crustaceans, and sea stars. Are snakes invertebrates? Since snakes have a backbone or spi...
In zoology, cephalization is theevolutionary trendtoward concentratingnervous tissue, the mouth, andsense organstoward the front end of an animal. Fully cephalized organisms have a head andbrain, while less cephalized animals display one or more regions of nervous tissue. Cephalization is associated ...
Acoelomates are a diverse group of invertebrate animals. As invertebrates, they have no backbones. They also lack a coelom, which is a space, or cavity, between the body wall and digestive tract, which more advanced animals have.Answer and Explanation: ...
Restoration of micro-habitat for several microbial, invertebrate, and insect species Figure 6: A pictorial representation of the step-wise secondary succession in the abandoned croplands. Image Credit:Mr G’s Environmental System. Renewal after Disease ...
Reproductionis a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending on the mode of reproduction, offspring can be produced from one or two parent organisms. The biological world displays an array of reproductive strategies that specifically suit thespecies’needs. ...
Invertebrate Animals Animals are divided into two big groups, the vertebrates that have an internal skeleton formed by bones and the invertebrates that have no bones. Some examples of invertebrates are: Sponges, jellyfish, corals, worms, mollusks, echinoderms and arthropods. ...
invertebrate responsesA versatile and simple laboratory stream was designed and used to investigate the burrowing activity of two insects in response to changes in water velocity and substrate type. Aphelocheirus aestivalis adults were unable to burrow into sand, however, a small proportion of ...
A hard exoskeleton:The exoskeleton of an arthropod is made of a strongpolysaccharidecalled chitin. This hard shell protects the animal, retains moisture, and sometimes even plays a role in reproduction. Compound eyes:Compound eyes allow arthropods to take in their environment in a variety of ways...
a) Invertebrate host (Triatomine insects like tsetse fly-Glossina palpalis) b) Vertebrate host (Humans) SARS-CoV VirusMasked palm civet MERS-CoV VirusDromedary camel Figure 4: Freshwater snails ofBiomphalariaspp. act as the intermediate host forSchistosoma mansoni. For other species ofSchistosoma,th...
Very recently microbial and species ofinvertebratetaxa have been included in the list of pioneer species. These species can be eitherphoto/chemo,auto/hetero, litho/organo -trophs. This signifies a very important point here that secondary succession occurs in places where some sources of nutrients ...