test
frame structure
The exterior of an egg is called the shell.
The shell of microbe may be referred to as a test.
The outer layer of a sea shell is called the exoskeleton or the shell's outer casing. It is composed of calcium carbonate and provides protection for the soft tissues of the animal inside.
The outer covering of an egg is called the shell.
Chitin
shelled protozoans.
Yes. Well, more or less rigid.
Yes, the cool and rigid shell is the asthenosphere.
The Earth does not have a "rigid" outer covering, it has an atmosphere.Below the atmosphere is the crust which is made of tectonic plates. However there plates are NOT rigid and to describe them as such would be incorrect, they deform and fold.
No, the rigid outer covering of arthropods is usually called the exoskeleton. In biology the mantle is a major anatomical component of a different phylum - molluscs, the tissue which contains the internal organs and in many molluscs responsible for secreting the mineralized outer shell.
The Earth's outermost sphere is the Lithosphere. It's the rigid outermost shell of the Earth.
The weaker, hotter zone beneath the lithosphere is called the asthenosphere. It is semi-fluid and allows for the motion of the Earth's rigid outer shell, or lithosphere, due to its high temperature and partial melting that makes it more ductile compared to the overlying lithosphere.
it will have rigid spike like things on the back of there shell:)
Yes. Well, more or less rigid.
The lithosphere/crust (which is made of tectonic plates). However, the plates are NOT rigid and to describe them as such would be incorrect, they deform and fold.
An APCR is a armor-piercing composite rigid, a variety of lightweight full diameter carrier shell.