The best answer is (1)
Fossil fuels are commercially available as an energy source.
They are very easy to find. More and more extractions of fossil fuels is going on everyday. With advancement in science and technology, the refineries and extraction procedures have improved a lot. This makes their availability even better.
Fossil fuels are also easily combustible. Most combustion engines need to be powered with little amount of fuel to produce large amount of energy. Very large amounts of electricity can be generated from fossil fuels.
The correct answer is that a butterfly and an octopus do not have Carnegie stages of development, while elephants and turtles do. This is because Carnegie stages of development are stages found only in the development of the vertebrate embryo. Carnegie stages can be defined as a system in embryology, which include 23 stages of the embryonic development, each characterized with the different age, size and morphologic characteristics of an organism.
Answer:
So none of the option is correct.
Explanation:
As we know the transcription occurs in 5' to 3' direction so 3'-5' work as a template strand for the transcription and the mRNA formed will be :-
5' CCC AGC CUA GCC UUU GCA AGA GGC CAU AUC GAC 3'
Here there is no start codon( AUG) for translation.
So none of the option is correct.
There might be error in the nucleotide sequence.
CCC- pro
AGC - ser
CUA- leu
GCC- ala
UUU- phe
GCA- ala
AGA- arg
GGC- gly
CAU- his
AUC- lle
GAC- asp
Answer:
The correct answer is- iodine
Explanation:
Thyroid glands is an important endocrine gland of the body which release hormone called thyroid hormone in the blood. It plays an important role in metabolism, brain development, and function, muscle control, etc.
The active form of thyroxine is triiodothyronine and the formation of thyroid hormone requires the availability of iodine. Four iodine atoms are present in thyroxine and 3 is present in triiodothyronine. Without iodine, they can not be produced.
Therefore iodine is the essential element that is required for the manufacturing of thyroxine and triiodothyronine.
