Answer;
Colloid
Fog is a colloid composed of water droplets in air.
Explanation;
-Fog is made up of condensed water droplets which are the result of the air being cooled to the point where it can no longer hold all of the water vapor it contains.
-A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. A fog is an example of a colloid as a beam of light can be easily seen passing through it.
Answer: worms have no hard parts
Explanation:
A fossil is a hard remain of the dead being which used to live on earth. It may belong to plant, animal or any other creature who used to have hard body parts such as teeth, bones, shells, wooden parts and others. As when the organism dies the soft body parts are decomposed off and only hard parts are left. These hard parts are preserved under the heap of earth in the sedimentary rocks as fossil.
The worms usually have soft body parts which can be easily decomposed off by the soil microbes after death. Hence, they cannot be preserved as fossils.
Answer:
If the cells are submerged in pure distilled water, each cell will absorb water from the environment where it is located, increase its volume and possibly break.
Explanation:
The cells maintain an osmotic balance relationship between their cytoplasm and the extracellular space, that is, the cell is isotonic with the medium.
When a cell is exposed to a hypotonic medium -such as that which provides pure distilled water- water will pass through osmosis from the extracellular space to the cytoplasm, causing the cell to increase in volume (swell) and the increase in internal pressure can Make it break.
<u>In osmosis, water passes from space with less concentration of solutes to the highest concentration</u>.
Learn more:
Isotonic solution brainly.com/question/13943541
Answer:
How physiological mechanisms serve as the basis for hunger
Explanation:
Physiological mechanisms are able to provide explanations to body functions, events and outcomes. Such mechanisms could be altered voluntarily when there's the need to. Hunger is on example of such. When a person is hungry the muscles of the stomach contracts and messages are sent to the brain. This process is what tells the person thaat he needs to feed.
