Can be spelt either way.
Two words - "one day".
It is two words. Writing it as one is acceptable in the UK and is referred to as a "Britishism." But in American grammar, it is always two separate words.
It is two words take it from a 7th grader
I recommend class work, as two words.
Two words.
The hinge ligament is a flexible structure that connects the two halves (valves) of a clam shell at the hinge. It acts as a spring to allow the shell to open and close. When the adductor muscles relax, the hinge ligament helps the clam's shell to open.
Bivalves are mollusks with two shells, such as a clam. A univalve is a mollusk with one shell, such as a snail.
the mussel of the clam keeps the shell together. But they can open it if the want.
The shell of a clam consists of two valves hinged together along the dorsal side (front). On the opposite end of where the clam opens is a swollen region (the umbo) where the shell of the clam starts to grow.
posterior and anterior adductor muscles
It can either be one word (seashell) or two (sea shell)
The umbo on a clam is the oldest part of the shell and can typically be found at the hinge of the two shell halves, closest to where they join together. It is usually more elevated and centrally located compared to the rest of the shell. Observing the position of the umbo can help determine the age and growth pattern of the clam.
This is a bivalve mollusk.
No, a clam is not a fish. Clams are mollusks, specifically bivalve mollusks, and are characterized by having a two-part shell. Fish, on the other hand, are aquatic animals with fins, gills, and a backbone.
A clam shell is typically oval-shaped with two hinged halves that can open and close. It is usually smooth and symmetrical. Clam shells can be distinguished from other types of shells by their shape, hinge, and lack of prominent ridges or spikes.
A clamshell is a one-piece container consisting of two halves joined by a hinge area which allows the structure to come together to close. Clamshells are often made of a shaped plastic material, in a way that is similar to a blister pack. The name of the clamshell is taken from the shell of a clam, which it resembles both in form and function.
The mantle of the clam lines the valves, and serves to secrete calcium carbonate in the formation of the clam's shell while protecting the clam's visceral mass.