They are viruses that infect bacteria and require a bacterial host in order to replicate themselves
Answer:
A. Their bodies tend to take in too much water.
Explanation:
Osmoregulation is the maintenance of osmotic concentration inside the body cells and in the extracellular fluid by controlling the amount of water and salts. Organisms living in water can be divided into two groups: Some are osmoconformers which change the osmolarity of body fluids with respect to the surrounding medium. Some are osmoregulators which do not allow change in internal osmolarity and try to maintain it by various means.
If as osmoregulator is placed in fresh water environment then their body is hypertonic to their environment. Osmosis will occur which is the movement of water from low solute to high solute concentration. Thus the problems faced by such organisms would be:
- Entry of excess water
- Loss of body salts to outside.
Adaptations in such organisms would be:
- Body cover such as scales or adipose covers
- They do not drink more water
- Excess water is eliminated as dilute urine
- Special cells called ionocytes or chloride cells help in active uptake of sodium ions and chloride ions.
Natural resource management deals with managing the way in which people and natural landscapes interact.
Blue eyes<span> are blue to lack of melanin, brown </span>eyes<span> are brown due to a lot of melanin and </span>hazel<span> or green </span>eyes<span> have melanin levels in between, and, as such, can appear to take on different hues based on how they blend with the </span>colors<span> people wear, the </span>color<span> of their hair</span>
chemistry of the nitrogenous bases are really the key to function the DNA<span>. something called complementary base pairing. cytosine can forms three hydrogen </span>bonds<span> with guanine, and </span>adenine<span> can form two hydrogen </span>bonds<span> with thymine.</span>
