Risultati di ricerca
6 giorni fa · The bilaterians are animals that have right and left sides at some point in their life histories. This implies that they have top and bottom surfaces and, importantly, distinct front and back ends. All known bilaterian animals are triploblastic, and all known triploblastic animals are bilaterian.
5 giorni fa · They are notable for the groups of cilia they use for swimming (commonly referred to as "combs"), and they are the largest animals to swim with the help of cilia. Depending on the species, adult ctenophores range from a few millimeters to 1.5 m (5 ft) in size. Only 186 living species are currently recognised.
3 giorni fa · Mollusca is the second-largest phylum of invertebrate animals, after Arthropoda; members are known as molluscs or mollusks [a] ( / ˈmɒləsks / ). Around 76,000 extant species of molluscs are recognized. [3] The number of fossil species is estimated between 60,000 and 100,000 additional species. [4] The proportion of undescribed species is ...
5 giorni fa · Hormonal and neuronal inputs to the brain control how much animals eat. The origins of this behavior were unclear, but in this issue of Cell Reports, Giez et al. describe specific neurons inhibiting feeding in evolutionary ancient animals without brain.
5 giorni fa · Animal physiology is the scientific study of the life-supporting properties, functions and processes of animals or their parts. The discipline covers key homeostatic processes, such as the...
5 giorni fa · Key Takeaways: Animals communicate in fascinating ways, from dolphins’ clicks to bees’ waggle dance. Understanding their language helps us appreciate their unique abilities and their role in the natural world. Different species use vocalizations, body language, and even bioluminescence to convey messages.
3 giorni fa · Describe how the appearance of the animals changed the evolution of other organisms on the early Earth (ex: food supplies, changes in dominant life-forms, etc.) Create a flow-chart showing the major adaptations within the animal kingdom (ex: importance of coelom formation, mouth-to-anus formation, body symmetry, etc.).
