The glue that barnacles secrete is a peptide that self-assemblies into a mesh triggered by the salinity of sea water. So this turns out not to be an example of a biological reaction that is not catalyzed by enzymes. See the articles in the reference section.
Any of a majority of the 1,000 species of the subclass Cirripedia of marine crustaceans that, as adults, are covered with a shell made of hard calcium-containing plates and are permanently cemented, head down, to rocks, pilings, ships' hulls, driftwood, or seaweed or to the bodies of larger sea creatures, from clams to whales. Barnacles trap tiny particles of food with their cirri, feathery retractable organs that emerge from openings between the shell plates. Adult barnacles commonly are hermaphrodites.For the source and more detailed information concerning this subject, click on the related links section indicated below.
Barnacles breathe through their testicles. All barnacles are male so that's how they breathe through their testicles.
YES! They are as hard as a rock but thin and sharp as a knife. Especially if you run into them under a pier in the ocean while swimming. You can die that way.
It takes a polish, is relatively impermeable, hard, and beautiful.
Calluses on toes are usually caused by ill-fitting shoes, walking on hard surfaces and having flat feet. To prevent calluses, one must purchase shoes that fit properly, avoid walking on hard, rough surfaces and seeing a doctor about flat feet.
Some examples of clinging shellfish are barnacles, mussels, and limpets. These shellfish attach themselves to rocks, docks, or other hard surfaces using a strong adhesive substance secreted by their bodies.
Barnacles are a type of shellfish. They grow from free swimming larvae.
They attach by strong byssus threads to hard surfaces
A hard surface is one which does not yield when pressed. Wood, stone and glass are hard surfaces.... rubber, fabric and foam are soft surfaces.
Friction does depend on the types of surfaces involved and how hard the surfaces push together. Friction would be very minimal if the surfaces were smooth and not pushing together too hard.
Peanut butter can be used to remove chewing gum from hard surfaces.
Any of a majority of the 1,000 species of the subclass Cirripedia of marine crustaceans that, as adults, are covered with a shell made of hard calcium-containing plates and are permanently cemented, head down, to rocks, pilings, ships' hulls, driftwood, or seaweed or to the bodies of larger sea creatures, from clams to whales. Barnacles trap tiny particles of food with their cirri, feathery retractable organs that emerge from openings between the shell plates. Adult barnacles commonly are hermaphrodites.For the source and more detailed information concerning this subject, click on the related links section indicated below.
how hard the surfaces push to gether the types of surfaces involved
Most stingers are barbed, which allow them to grip to hard surfaces.
Yes.
Hard surfaces are better at reflecting sound because they do not absorb the sound waves as much as soft surfaces do. Soft surfaces, like carpets or curtains, tend to absorb more sound, causing less reflection.
a type of desert with hard rocky surfaces