Question

Word meaning or define
1 element =
2 breathing rate =
3 spiracles =
4 speed =

Answer 1

Answer:

element : An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.

speed : Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance

breathing rate : The respiratory rate is the rate at which breathing occurs. This is usually measured in breaths per minute and is set and controlled by the respiratory centre.

Spiracles : a breathing hole; an opening by which a confined space has communication with the outer air; air hole.