Answer:
The bright color of butterflies is a discouraging factor for its prey
Explanation:
Butterflies and caterpillars are easily visible to its prey but still they do not eat any of them. This can be because of two factors –
a) The bright color of these organisms might be a factor that makes them uninteresting (intending to be tasteless etc.) for their prey
b) The bright color might be a signal to the bird indicating in advance of any harm associated with the butterflies/caterpillar feeding.
Hence , instead the Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds, the birds rarely eat the monarchs
The main evolutionary disadvantage of transgenic rabbits, in this case, is associated with the lack of adaptation that fluorescence will produce making them susceptible to predators.
<h3>What is adaptation?</h3>
Adaptation is a slow evolutionary process where more adapted individuals are selected by differential reproduction and survival.
Fluorescent transgenic rabbits will be more susceptible to predators in natural populations, thereby they will have less adaptive fitness compared to normal rabbits.
In conclusion, the main evolutionary disadvantage of transgenic rabbits, in this case, is associated with the lack of adaptation that fluorescence will produce making them susceptible to predators.
Learn more about adaptation here:
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Answer:
It lacks a cytochrome oxidase for passing electrons to oxygen.
Explanation:
During aerobic respiration, the NADH and FADH2 formed during glycolysis and Kreb's cycle are oxidized through the electron transport chain. NADH and FADH2 pass their electrons to the molecular oxygen via four complexes electron transport chain. Cytochrome oxidase is also called a complex IV of the electron transport chain. It serves to carry the electrons from cytochrome c to molecular oxygen, reducing it to H2O.
In the absence of cytochrome oxidase, electrons from NADH and FADH2 will not be passed to the molecular oxygen. Oxidation of NADH and FADH2 is required to continue glycolysis and Kreb's cycle. Therefore, in the absence of cytochrome oxidase, the cells will perform anaerobic respiration to oxidize NADH into NAD+ so that glycolysis can be continued as a source of energy.
Answer:
the correct option is D.
Explanation:
in case of quaternary level of protein structure , protein has more than one polypeptide chains and in this level , the polypeptide chains are aggregated and held together by hydrophobic interactions, hydrogen and ionic bonds. this specific arrangement is called the quaternary structure.for example :-
Haemoglobin the oxygen carrying protein of red blood cells, exhibits such a structure.