Nutrients and waste both enter and leave cells through a process called
a. effusion b. diffusion c. fusion d. emulsion

The answer is B diffusion 

Nutrient and waste materials use a process of diffusion to enter and leave the cells during metabolic processes.  

Further Explanation:

Diffusion is the process that allows movement of water, nutrients, and waste material across the cellular membranes. It also allows gaseous exchange. These smaller molecules can be transported across the membrane. There are two types of diffusion processes;

Diffusion  Facilitated diffusion

First one is a type of movement that is along the concentration gradient and does not require any specialized carrier systems. Some of the molecules that are transported this way include water and gases. The second type of diffusion, facilitated diffusion, requires a carrier protein to assist the movement of molecules such as glucose. Both are examples of passive transport.

Effusion is the collection of fluid in a specific space where it is not supposed to be. For example pleural effusion is the collection of fluid in lungs.

Fusion is the process of combining to form something new. For example, cell fusion is the process where two uninuclear cells combine to form a multinucleated cell.

Emulsion is a mixture of two or more liquids that are immiscible. These liquids do not mix properly in normal conditions. For example, when oil is mixed with an aqueous liquid, it forms an emulsion of oil.

Learn More:

Learn more about prokaryotic and eukaryotic cells Learn more about eukaryotic cells Learn more about DNA and RNA

Answer Details:

Grade: High School

Subject: Health

Chapter: Nutrition

Keywords:

Diffusion, facilitated diffusion, carrier proteins, effusion, emulsion, fusion, nutrition, pleural effusion, immiscibility.

Muscles in the body us with a lot of things for example, if i wanted to lift a heavy box and had no muscle i would just collapse where i was because of the fact muscles hold us together. overall they are 650 muscle in the human body, all of them have different purposes and ways to keep us together. there are three types of muscle in the body skeletal, smooth, and cardiac muscle. skeletal muscle are attached to the bone and with movement. smooth muscle, this is found in the wall of our organs, such as our stomach, this muscle with movement   as well, without this muscle, we would only be allowed to eat small amounts. the cardiac muscle is the heart muscle and probably the most important one. these are only found in the walls of the heart and the heart pump blood to the other parts of your body. we have two different types of muscle fibers, slow twitch and fast twitch. slow twitch muscles enable long-endurance feats such as distance running. fast twitch fatigue faster but are used in powerful bursts of movements like sprinting. there are three different types of muscle contractions concentric, eccentric, isometric. concentric contraction causes muscles to shorten, thereby generating force.   eccentric contractions cause muscles to elongate in response to a greater opposing force. isometric contractions generate force without changing the length of the muscle.: //athleticquickness.com/muscle-contraction-types-part-1/

Answerpoor public health services;