Most likely A from my point of view
The safety procedural step that must always be performed
when setting up a vacuum filtration apparatus is that first, you should always
wear the proper protective equipment, next is that the vacuum filtration—you should
clamp the flask of which is needed, securely to the ring stand. It must be
secure or it may be in the way of performing the experiment.
The shape you will not see is a crescent . <span />
Answer:
The answer is Similarity
Explanation:
The distinct features of the two groups of birds i.e brown cardinals and bright red cardinals illustrates the principle of similarity. The principle of similarity states that things that share visual features such as shape, size, color, texture, value or orientation will be seen as belonging together or being in a unified group