Wastewater treatment plants can make wastewater drinkable again. Which of
the following is a technology used to remove disease causing organisms
from wastewater?
O
A. Allowing solid wastes to settle out of the water
O
B. Adding bacteria that digest waste to the water
O
c. Skimming materials from the surface of the water
O
D. Releasing treated water into nearby streams

(c) Freshwater fish counteract osmosis by drinking large amounts of water and limiting their urination and feeding.

Explanation:

Freshwater fish have blood that is saltier than the water they swim in. They have to save salt and excrete lots of water. So they have to excrete low salt urine but high in water volume, because lots of water enters the blood and gills by osmosis. Remember that water moves by osmosis to hypertonic environments.

Option A is true because if the organisms are isotonic the water net movement is 0.

Option B is true, fish use active transport to excrete salts through their gills.

Option D.  Skin and waxy exoskeleton prevent water loss. Plants close stomata to prevent water loss.

air, water and organisms in water

Explanation:

All organisms need water to transport chemicals into their cells.

answer is C. All organisms need water to transport chemicals into their cells.

C: All organisms need water to transport chemicals into their cells

Explanation:

Living organisms need water to survive. Other organisms require water to break down food molecules or generate energy during the respiration process. Water also helps many organisms regulate metabolism and dissolves compounds going into or out of the body.

All organisms need water as an energy source.

The answer is: All organisms need water to transport chemicals into their cells.

For example, supplies the body with oxygen and nutrients, and picks up carbon dioxide wastes.

The blood transports:

1) oxygen from the lungs to the cells of the body.

2) carbon(IV) oxide from metabolism to the lungs, where it is exhaled.  

3) nutrients, transports hormones and removes waste products.

The correct answer is desert.

Explanation:

If an entomologist wants to look for a good example of an organism that prevents water loss, he must look for organisms in the desert.

A desert is one of the ecosystems that receives less water, the rainwater that falls is less than 150 mm per year.

Despite the heat and lack of water, there is a wide variety of living beings that inhabit this type of ecosystem. But for that they must save water, and they do this through adaptations that they developed when they were living in this place.

They can have two types of adaptations: physical or behavioral adaptations.

In behavioral adaptations, desert animals simply avoid the sun to generate greater water retention. Depending on the species, some choose to go out only during the night, and others prefer to be under the shadow of a cactus.

Some species also get the water they need through the food they eat, which prevents them from having to go in search of water.

One type of physical adaptation is the one that occurs in those animals who accumulate fatty tissue in their body which allows them to stay fresh and thus prevent water from evaporating.

Why is water necessary for living organisms?

All organisms need water to transport chemicals into their cells.

Explanation:

Water is essential to life, it is the only known universal solvents. Organisms make use of water to carry out of process such as transportation of organic nutrients to where it is needed in the system, blood is even composed of water that helps this transportation to be possible also water makes 70% of living organism, hence: water is life.