Answer:
by their species or genus
Explanation:
Answer:
Low levels of dissolved oxygen would decrease the diversity of the fish population.
Explanation:
Salinity means an increase of the dissolved salt content in a water body.Water that has a high content of salt contains low amount of dissolved oxygen and therefore, it becomes a less appropriate environment for some aquatic organisms.
Although, most of the water bodies have specific optimal salinity range, They can adjust to live in that certain range, however, if salinity increases beyond that range , water bodies will shift from that environment to a new one that is more suitable for them to live. On the other hand, fish or other waterbodies that are more tolerant to salinity will migrate to this acquatic zone and will adapt there. But sometimes, an abrupt increase in salinity do not give alot of time to the fishes to relocate and they just die from salt stress. This has something to do with decreasing the diversity of fish population.
Hope it help!
Answer:
c, sickle cell anemia
Explanation:
When you are conceived you (generally) receive one set of chromosomes from your mom and one from your dad. Recessive diseases mean that you must receive 2 copies of the mutated gene (disease gene) to express the disease (one from mom and one from dad). Dominant means that you only need one copy of the mutated gene to express the disease.
Sickle cell anemia is a disease caused by a mutation in the hemoglobin-Beta gene found on chromosome 11. The mutation is on an autosome (not a sex chromosome). You need two copies of the bad gene in order to express it.
Answer:
<h2><u><em>
Evolution</em></u></h2>
Explanation:
In order for species to survive over generations, they will have to adapt. Adaptation is a form of evolution.
I hope this helps!
