There are many options. Amongst them: An ellipsoid (including a sphere) intersected by two planes which do not, themselves intersect within the shape; A paraboloid intersected by two planes which do not, themselves intersect within the shape; A cone intersected by two planes which do not, themselves intersect within the shape; A semi-hyperboloid intersected by two planes which do not, themselves intersect within the shape; A toroid (doughnut) intersected by two planes which do not, themselves intersect within the shape; An elliptic prism intersected by two planes which do not, themselves intersect within the shape. The last of these would include a cylinder.
Mark two point an ony two sides. Join these with lines that do not intersect within the shape.Mark two point an ony two sides. Join these with lines that do not intersect within the shape.Mark two point an ony two sides. Join these with lines that do not intersect within the shape.Mark two point an ony two sides. Join these with lines that do not intersect within the shape.
A section of a cone or spheroid intersected by one or two planes that themselves do not intersect within the solid.A section of a cone or spheroid intersected by one or two planes that themselves do not intersect within the solid.A section of a cone or spheroid intersected by one or two planes that themselves do not intersect within the solid.A section of a cone or spheroid intersected by one or two planes that themselves do not intersect within the solid.
An ellipsoid sliced by two planes that do not intersect within the shape. An example with a sphere instead, could be a watermelon with a slice cut off from each side.
the difference between a two dimensional shape and and a solid is that a two dimensional shape is plane and a solid you can see the whole shape a the inside.
Cnidarians come in two forms: a medusa has tentacles that hang down and polyps usually live attached to a surface.
Polypoid Shape and Medusoid Shape
The body systems that cnidarians have take two forms. The main body forms are medusa and polyp. Cnidarians do not have a transport system and the body surface is used for gaseous exchange.
Polyps, which are Sessile or stationary, and Medusa which move.
The two forms of Cnidarians are the Medusoid or mobile form (e.g. Hydra), and the Polyp or sessile form (e.g. Aurelia).
small cnidarians and big cnidarians
The two body forms of cnidarians are the polyp and the medusa. Polyps are typically sessile, tube-shaped organisms attached to a substrate, while medusae are free-swimming, umbrella-shaped organisms.
Liquids and gases have no shape of their own.
There are many options. Amongst them: An ellipsoid (including a sphere) intersected by two planes which do not, themselves intersect within the shape; A paraboloid intersected by two planes which do not, themselves intersect within the shape; A cone intersected by two planes which do not, themselves intersect within the shape; A semi-hyperboloid intersected by two planes which do not, themselves intersect within the shape; A toroid (doughnut) intersected by two planes which do not, themselves intersect within the shape; An elliptic prism intersected by two planes which do not, themselves intersect within the shape. The last of these would include a cylinder.
Polyp and medusa are two stages in life cycle of cnidarians , polyp is hydra like and medusa is jelly fish like .
The two types of true tissue found in cnidarians are the epidermis and the gastrodermis.
polyp and medusa