The brief description of the project is called Abstract.
Option B.
<h3><u>Explanation:</u></h3>
An abstract is defined as a brief description of the project or content of an article, speech, or a book. An abstract is given at the beginning of the book or project to describe what's the topic of the project, what the project is going to prove, or to explain.
An introduction on the other hand is a description about the project topic, the prevailing idea, or explaining the topic of project.
A reference is described as the source from where the data of the project are collected or hints are taken.
A summary is the paragraph briefly describing the project conclusion at the end of the project, to briefly explain everything about the project.
One is the <u>acceleration of the impulse</u> and the second one is <u>deceleration of the impulse</u>.
Answer:
I'm not sure if this is correct but I think it's C
Controls the movement of substances in and out of cells and organelles.
they keep toxic substances out of the cell; also they contain receptors they also channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass
Hope this helps!