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What allows adults that are mature to reproduce even though they still retain some larval charcterstics?
Adults with retained larval characteristics can still reproduce because these traits no longer prevent them from completing the reproductive process. These retained larval characteristics may also offer some advantage in reproduction. Additionally, the evolutionary process has allowed for the retention of these traits without hindering reproductive success.
What is a distinguishing characteristics of the members of the genus ambystoma?
One distinguishing characteristic of the members of the genus Ambystoma is their larval form, as they typically have external gills and a distinct aquatic lifestyle before transitioning to their adult form. They also exhibit a diverse range of behaviors and life history strategies, such as paedomorphosis, where some individuals retain their larval features into adulthood.
How does salamanders appearance change during their life cycle?
Salamanders undergo significant changes during their life cycle, particularly during metamorphosis. Most species begin as aquatic larvae with gills and a tail, which allows them to thrive in water. As they mature, they develop lungs and may lose their tails, transitioning to a terrestrial or semi-aquatic adult form with a more diverse range of colors and patterns. Some species retain their larval features as adults, a condition known as neoteny.
What is an amphibian that is know as a waterdog in the south?
Mudpuppies and waterdogs are large neotonous salamanders (salamanders that retain their gills in adulthood). Often used for bait in fishing they are generally green or brown in color. Mudpuppies are Necturus maculosus of the family Proteidae and remain neotonous. Waterdogs can mature into tiger salamanders.
Paedomorphisis in Salamanders?
Axolotl's are a kind of salamander that have evolved into a paedomorphic state.More Mud puppies and many cave salamanders also exhibit paedomorphosis. The most obvious example is that these salamaders retain external gills, a juvenile trait, into adulthood and throughout their lives. They often also retain other juvenile traits, such as webbing on the tail and feet.
What is the difference between frogs and salamanders?
Newts are a group of salamanders belonging to the family Salamandridae. (All newts are salamanders, but not all salamanders are newts) In North America there are two genus of newts, the Eastern newts and the Western newts.
What evidence of chordate affinities is present in adult tunicates and in larval tunicates?
Adult tunicates exhibit chordate affinities through the presence of a notochord in their larval stage, which is a defining characteristic of chordates. In larval tunicates, the notochord is prominent, along with a dorsal nerve cord and pharyngeal slits, which are features shared with other chordates. Although adult tunicates lose many of these traits and become sessile, they retain a structure called the tunic, which reflects their evolutionary connection to the chordate lineage. Overall, the larval form displays the key chordate features, while the adult form highlights the evolutionary adaptations of tunicates.
Does the product of a chemical reaction retain the same characteristics of the reactants?
no
Why isent the boa constrictor a amfibean?
The boa constrictor is not an amphibian because it is a reptile, belonging to the class Reptilia. Amphibians, such as frogs and salamanders, typically have a life cycle that includes an aquatic larval stage and are characterized by moist skin, which is essential for respiration. In contrast, boa constrictors are fully terrestrial, breathe air through lungs, and have scales that help retain moisture. Their reproductive methods and physiological adaptations further distinguish them from amphibians.
How do you use the word retain in a sentence?
The primary function of a sponge is to retain water.It is the right of indigenous cultures to retaintraditional customs.Living things retain most of the characteristics of their parent organisms.
What animal exhibits all four chordate features an adult?
The adult tunicate, specifically the subphylum Urochordata, exhibits all four chordate features: a notochord, dorsal nerve cord, pharyngeal slits, and post-anal tail. While tunicates are more commonly recognized in their larval stage, which displays these features prominently, certain adult tunicate forms retain these characteristics in a reduced or modified state. For example, they have a notochord in their larval stage, and some adult forms retain remnants of the nerve cord and pharyngeal slits for filter feeding. Thus, while tunicates are unique among chordates, they do reflect the chordate features in their life cycle.
How was characteristics of pumice as a spongy rock used?
It is used as a soil conditioner to help retain water.
