Answer:
It varies greatly...
Explanation:
(a) Latitude is one of the main factors that pushes the evolution toward adaption to a environment. For example, at higher latitude, the diversity is a little low than on lower or average latitude due to the availability of resources that are easily available on ground level relatively.
(b) As we goo deep in ocean, the diversity of life increases as seen in graph but then after a peak point declines rapidly. This is because at normal depth life thrive in normal conditions of temperature and pressure but deep down low, the pressure of water is so intense that it can even crush lead. So, the little amount of organisms that are living in those depths are highly evolved to that intense environment...
(c) Pollution puts a opposite effect on diversity either it is air, water or ground type of pollution. Marine biodiversity take a great loss from chemicals waste as well as the ground animals in which the viable environment gets completely destroyed. This is the main cause of extinction of various animal and plants species.
A certain bacterial mRNA is known to represent only one gene and to contain about 800 nucleotides. If you assume that the average amino acid residue contributes 110 to the peptide molecular weight, the largest polypeptide that this mRNA could code for would have a molecular weight of about _______.
A) 800.
B) 5,000.
C) 30,000.
D) 80,000.
E) An upper limit cannot be determined from the data given
Answer:
c. 30,000
Explanation:
The gene has a total of 800 nucleotides and would be transcribed into an mRNA having about 800 nucleotides. The nucleotides of mRNA are read in the form of genetic triplets. This means that the mRNA with 800 nucleotides would have about 800/3= 266.66 or 266 genetic codes. This mRNA would be translated into a polypeptide chain having around 266 amino acids.
One amino acid contributes 110 to the molecular weight. The total molecular weight of the largest possible polypeptide that can be encoded by the said gene would b 266 x 110= 29260 (around 30,000).
<span>The energy pyramid is shaped like a triangle to show how not all the energy of one organism transfers to the next level. The triangle decreases in size going up as does the amount of energy transferred. A graphical model that is shaped like a pyramid to show how the energy flows through a food chain, how the amount of energy is decreasing and becoming less available for organisms as it enters each trophic level, and how much of the energy in the ecosystem is lost to the atmosphere as heat.
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Aids and HIV destroy the immune system.
