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Cell is the building blocks of a living things.
The size of the bacteria can vary from 0.0005cm-0.0015cm.
Bacterial cells are the smallest as they can be as small as 0.00005cm.
The largest cell in our body is the nerve cells as they extend from head to toe. the egg of the ostrich is the largest -single cell.
There are unicellular organisms like amoeba and multicellular organisms like plants and animals.
<h3 /><h3>nucleus</h3>
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Explanation:</h3>
<h3>The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).</h3>
Answer:
4 amino acids.
Explanation:
To become translated into protein, a sequence is read in triplets called codons.
Each codon that codes for an amino acid is made up of 3 nucleotides.
Therefore, a sequence of 15 nucleotides would be translated into a polypeptide that is made up of 5 amino acids. (15 divided by 3 = 5)
However, we are told that there is a stop codon at the end of this sequence.
A stop codon is a specialised codon that does not code for an amino acid, but tells the protein machinery that the polypeptide is complete.
Therefore, the polypeptide would have 5-1 amino acids, which corresponds to 4 amino acids.
Options:
- a lake
- a prairie
- the land an organic farmer uses to raise crops to feed his dairy cattle
- a large island in the tropics that has snowcapped mountains
Answer:
a large island in the tropics that has snowcapped mountains
Explanation:
The land a farmer uses is likely to be quite highly regulated in order to ensure that his dairy cattle thrive. That means the growth of certain plants will be controlled, and this will likely impact diversity.
A lake and a prairie could have diverse and balanced ecosystems. However, due to the limited habitat are likely only to harbour specific organisms. E.g. the lake will only harbor organisms that thrive in water environments.
A large island will, first of all, have a lot of space to support diversity. It is in the tropics, meaning it will have species suited to a hot and wet environment. Since it is an island, there will also be the involvement of sea/ocean dwelling creatures. However, there is also mountainous habitat that has snow, meaning it is high up and cold. This provides a habitat for even more species adapted to different environments.
Therefore, the island will be the most diverse.
The answer is C. The method which involves counting the number of organism in a specific area is sampling. It is one common method to estimate the population of certain organisms used by biologists. In a given range, the number of plot is determined and per plot the number of individuals is multiplied to the number of plots then this results to an approximate population size.
