In their body
They help in flow of blood.
4
Butterflies have nine pairs of spiracles. These are pores open to the air and tracheae which carry air through the body of an insect. Spiracles are located on the abdomen and thorax.
23 pairs
There are three lone pairs present in a molecule of KrF2.
two
There are about 3 billion nitrogen base pairs present in one strand of human DNA.
There are three lone pairs present in chlorine atom
The Si has no lone pairs, but each F has 6 lone pairs. Thus 6 x 4 = 24 lone pairs, total.
46 (23 pairs)
Cockroach travel many feet in an hour.
No, if talking about the common cockroach. They are invertebrates, insect variety. If you are talking seriously about the roach which is a fish in the carp family, yes they have bones.