1. Pathogens enter the body through a cut in the skin
2. Cells recognize the foreign invaders
3. Histamine is released
4. White blood cells travel to the invaded area
Hope it helps.
USLANTCOM had been active from 1947
to 1993 as a main U.S. Navy command, focused upon the wartime defence of the
Atlantic sea lanes against Soviet Union attack. After the end of the Cold War,
a 1993 reorganization gave the Command a new acronym, USACOM, and make United
States Army Forces Command and Air Combat Command under its authority. USJFCOM
was established in 1999 when the old United States Atlantic Command was change
its name and given a new mission: leading the transformation of the U.S.
military through experimentation and education.
The characteristic of the weak non covalent interactions that enable the assembly, stability and functions of bio molecules is that NON COVALENT INTERACTIONS HAVE LARGE AGGREGATE STRENGTH WHEN MULTIPLE INTERACTION ARE PRESENT.
Although they are considered as weak forces, but when present in large number, non covalent interaction has the capacity to stabilize large polymers using their aggregate strength.
Answer:
d. the groups will probably diverge genetically, and speciation may occur
Explanation:
The geographical isolation of two populations of a species for a longer time period leads to allopatric speciation. During the process, the isolated populations accumulate genetic variations to become adapted to the prevailing conditions of the habitat.
Accumulation of genetic variations leads to reproductive isolation between the population. After several generations, the individuals of the two isolated populations are unable to interbreed due to genetic variations. Now, these two populations are said to belong to two different species. The isolated lizard populations would also accumulate genetic variations resulting in allopatric speciation.
