Answer:
The correct answer is- Synthesis(S) phase
Explanation:
Interphase is the phase where cells spend most of their time. It is known as the resting phase and contains 3 stages called G1, S, and G2 phase. In G1 phase cells grow in size and produce those enzymes which are required for DNA replication.
In the synthesis phase, the DNA is replicated and gets doubled. This event is very important in the cell cycle because it allows each cell produced after cell division to take an equal amount of genetic material which is identical. Therefore in the cell cycle DNA replication occurs in the synthesis phase.
B. It prevents reproduction between populations.
C. It reduces competition between the populations.
D. It protects one of the populations from predation.
Answer;
B. It prevents reproduction between populations.
Explanation;
Geographical isolation refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species.
Geographic isolation causes individuals of an original species to accumulate sufficient genetic differences to prevent them breeding with each other when they are reunited.
Answer:
Oxbow lake is formed when a bend in a river is cut off to form a lake.
Explanation:
This statement is incorrect , as the shape of the oxbow lake is not like an ox , it is a horse-shoe shaped lake .
This statement is correct , as An oxbow lake is a U-shaped lake that forms to create a free-standing body of water when a large meander of a river is cut off.
This statement is also wrong, as a river delta is specified by this statement.
This statement is also false, since the creation of a reservoir is established by this statement.
FORMATION OF OXBOW LAKE -:The neck of the meander gets narrower and narrower progressively. The curve gradually grows so close that the river slices through the neck of the meander to take a new, straighter path. Sediment locks the end of the old loop over time. This leaves a region of water that is different, called an oxbow lake.
Hence , the correct option is B.
Answer:
Bbbb
Explanation:
b. Coral reefs provide aquatic organisms with resources but derive no benefits in return.
c. Coral reefs provide resources for aquatic organisms and derive resources from other organisms as well.
d. Aquatic organisms live independently of coral reefs.
The correct answer is - c. Coral reefs provide resources for aquatic organisms and derive resources from other organisms as well.
The corals are essential part of the marine ecosystems. They are feeding upon zooplankton, but also their polyps get sugar that is produced by the algae living on them. Also, the corals provide much needed shelter for lots of marine animals, but also are on the menu of some, like the starfish for example.