The correct answer is 50.
Proteins are complex biomolecules made out of amino-acids bound together with peptide bonds. They can be comprised out of thousands of several polypeptide chains with thousands of amino-acids organised in complex structures. But, some of them can contain only around 50 amino-acid and still posses all of the complex traits of an protein.
Some polypeptides contain only 3 amino-acids, but technically they are not classified as proteins due to a big functional and structural differences between a simple polypeptide chain and a protein. Proteins are made out polypeptide chains, but this is only the primary structure of an protein. the polypeptide chains in a protein are organized into complex 3D structures that give them novel traits and complexity as compared to plain polypeptide chains.
C.organ
because stems, roots and leaves are not seen b with microscope, they are not tissues but organs. and not organ system because root system etc are organs systems
May be I have not explained well but it is the correct option.
An example of negative feedback<span> is the maintenance of blood glucose levels. When an animal has eaten, blood glucose levels rise, which is sensed by the nervous </span>system<span>. Specialized cells in the pancreas (part of the endocrine </span>system<span>) sense the increase, releasing the hormone insulin.
From what I know I once did a report on this so that is where I got it from.
Hope this helps.
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Options are:
A. a fish
B. an aquatic bird
C. a mosquito
D. a dragonfly
Answer: Fishes
Explanation:
A metapopulation can be defined as a small population that cannot itself make a large population that is stable.Many sub populations are connected intermittently to combine and form a population.
Small population of fishes would have been separated for most of the years and are joined by when floods occur and these populations are connected by kettle ponds.
Rest of the three organism like bird, mosquito and dragon fly cannot be separated so as to form a metapopulation.
