All skeletal systems provide support to organisms, but only two types are hard. Which lists the two hard skeletons?

A skeleton is a structural frame that supports an animal body.

There are two major types of skeletons: solid and fluid.

Exoskeletons are external, and are found in many invertebrates; they enclose and protect the soft tissues and organs of the body.

Explanation: HOPE IT HEPLS

thymine. in rna, thymine is replace by uracil

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you