<span>This is a true statement.
Cantatas are divided into contrasting sections which are referred to as movements.
Cantata was mostly being applied exclusively to choral works which are distinguished from solo vocal music.
Cantatas retained its original Italian usage to which described a secular vocal piece of extended length and was different in sections and being italianated in style.</span>
The answer is letter C. The distribution of oak trees in an
area.
Population Ecologist would often measure the number
distribution and density of the area. Trees are often measured by plots or by
hectares. This is to know how many trees are situated in that
area.
The substance that helps keep the integrity of the bacterial cell wall intact is known as the peptidoglycan. Others also refer to is it as murein or mucopeptide. The bacterial cell wall is necessary for survival because of the high internal pressure present inside of bacteria. Under normal conditions, if the cell wall is removed the bacterial cell will burst.
The peptidoglycan is a layer that can be used to distinguish gram positive bacteria from gram negative ones. G(+) bacteria have a thick layer of this while G(-) have a thinner ones.