Reproductive separation may result in the evolution or speciation of two different species. This hinders the capability of different species to produce an offspring. It also serve as a barrier to maintain integrity of each species wherin gene flow is reduced.
DNA a double-helix like structure, containing multiple nucleotide sequences consisting of a phosphate group, a sugar group, a nitrogenous base, and a hydrogen bond between two nucleotides. The hydrogen bond is weak so the double-helix can "unzip" and make RNA. I hope this helps!
Fault-block mountains are formed by extensional stresses.
Explanation:
- Fault-block mountains are formed because of extensional stresses. They are also called tension stresses.
- These stresses pulls and stretches rocks apart which causes normal faults to form.
- The normal fault cuts through rocks, causing one to slip downward and one to move upward. Thus, fault-block mountains are formed.
- Sierra Nevada in California and Nevada is an example of a fault-block mountain.
Answer:
A. The hydrophilic head groups of the lipid molecules are exposed to the outside of the cell and the cytoplasm, which is a water-like environment. The hydrophobic tails form an oily layer inside the membrane that keeps water out of the cell
Answer:
It affects the oxygenation of the tissues in a negative way, that is, causing tissue hypoxias.
Explanation:
What will happen is that BPG, having a different relationship with deoxyhemoglobin, hemoglobin will not give oxygen to organs or tissues during glycolysis at times when the sympathetic nervous system is activated or even in the maintenance of physiological tissue vitality, therefore it will trigger a drop in the partial pressure of the gas both in the blood and in the tissues since they will be retained in the hemoglobin structure without being able to release it.
