Answer:
Fresh water represents only a small part of the water resources of the Earth. the fishes present in these ecosystem have high economical values and are beneficial to mankind. The evolution of these fishes is important because it will allow genetic varieties to arise in these fishes. Hence, these fishes will be able to survive and reproduce. Also, some of these fishes might adapt to live in salty environments in the course of evolution.
Answer:
C- Climate
Explanation:
Climate is those patterns over a long period of time.
Answer:
D. Diffusion
Explanation:
The process of diffuse transports the substances in the direction of their concentration gradients. Diffusion of substance from the region of their higher to that of the lower concentration does not require any energy. Being a passive process, diffusion can be carried out by a cell irrespective of the status of its ATP supply. Therefore, an animal cell containing a small amount of cyanide can transport substances by diffusion.
<span>To be more exact, there are two functions that occur together as an entity.Two main functions of the sigma subunit in bacterial rna polymerase are definitely </span><span>recognition and binding. I am pretty sure it will help you in your assignment!</span>