The replication fork is a structure that forms within the nucleus during DNA replication. It is created by helicases, which break the hydrogen bonds holding the two DNA strands together. The resulting structure has two branching "prongs", each one made up of a single strand of DNA.
Answer:
Statements thar are true:
Some organisms have phenotypes that make them better increase chances of reproduction.
Natural selection continues to occur even today
Phenotypes found In the most successful members of a species become the most prevalent after several generations.
Explanation:
It is not true that all organisms must compete for survival, sometimes the conditions are good and there is enough food or good climate conditions and that makes no need of competition an increase in the individuals of the species.
Animals undergo natural selection, this is a random natural phenomenon that can make plants and animals adapt better or worse to the enviromental conditions. This cause that the beneficiaries can adapt, survive and reproduce and became the most prevalent after generations.
Mutations are not phenomen that occur because the living being needs it, but rather they are phenomenon that occur at random at any time and determine the possibility of survival.
A decrease in food availability will do the contrary, decrease the variation in a population because it makes that only those who manage to adapt to eat another food survive, for example.
The two major types of aquatic biomes is Freshwater and Marine. The major factor that differentiates between the two aquatic biomes is difference in Habitat.
The two major types of aquatic biomes is Freshwater and Marine.
Freshwater regions include rivers and lakes with comparatively low salt concentration.
Marine regions include Ocean, and Estuaries with comparatively high salt concentration.
The Habitat of the Freshwater and Marine life is the major differentiating factor between them.
The survival of fish is also dependent on the type of Freshwater and Marine environment.
Like, the marine water fishes can survive in a water concentration with high salt concentration.
The working of the organs of the aquatic organisms in Freshwater and Marine determines the concept of osmosis and various life important activities needed for the existence.
Fish in salt water need to maintain stable drinking conditions to maintain healthy life.
Freshwater organism finds easier to get adapted to the water environment. They are less sensitive as compared to marine water.
Learn more about Osmosis here, brainly.com/question/1799974
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