The answer should be B may be wrong
Answer:
The two main types of DNA organization present in chromosomes are the extended DNI and the condensed DNI
Explanation:
In eukaryotes, the complete chromosome is composed of only one lineal and extremely long DNA molecule. DNA is intimately associated with two types of proteins: <u><em>histones</em></u>, which are structural proteins, and <em>non-histone</em> proteins that mediate different functions of DNA.
DNA associated with histones is called <u><em>chromatin</em></u>. Histones are responsible for packaging DNA molecule, and the fundamental unit of packaging is known as a <em><u>nucleosome</u></em>. As chromatin must be condensed, nucleosomes generate regular structures between themselves forming a <em><u>chromatinic fiber</u></em>, in which DNA is very condensed. A superior level of condensation is the structural <em><u>ringlet-shaped domain</u></em>. At this level, a chromatinic fiber is folded and a protein is responsible for keeping joined the two regions of DNA that form the ringlet. The next condensation level is the rolling of the ringlet-shaped domain composing the <u><em>chromosome</em></u>. The typical chromosome in the metaphase is formed by <u><em>two chromatids</em></u> joined by a centromere. Each chromatid is composed of a sequence of chromatin ringlets domains. In the interphase, <em>before cellular division</em>, chromatin is in a diffuse, lax, uncondensed state, known as extended DNA. When <em>cellular division</em> is about to happen, chromatin begins to condensate. At the beginning of the <em>prophase</em>, DNA is condensed in a well-defined chromosome formed by two sisters chromatids.
Answer:
a. Birth rate: 14%
b. Net migration rate: 2%
c. Death rate: 20%
d. Rate of population change: -4%
e. Declining
Explanation:
I'm assuming this question is from the Biozone textbook, and this is the original data:
Births: 14
Deaths: 20
Net migration: +2
And the way to calculate the rate of population change is by adding together the birth rate and net migration rate, and subtract the death rate. If there was one you'd have to subtract the net emigration rate as well :)
Answer:
Food, water availability and space.
Explanation:
Food, water availability, and space are the factors that determines carrying capacity of a specific region. If there is plenty of space, sufficient quantity of water and food available to organisms, more population of organisms can sustain by environment without causing damage to the environment. If these factors are less in quantity so little population of organism can live in that environment.