The correct answer is that the yolk provides nutrients for the embryo. Hope this helps.
Answer:
The direct conversion of mesenchymal tissue into bone is called i<u><em>ntramembranous ossification</em></u> .The process by which a cartilage intermediate is formed and replaced by bone cells is called <em>endochondral osssification.</em>
Explanation:
Intramembranous ossification is one of the two essential process during the fetal development of the gnathosome skeltal system by which rudimentary bone tissue is created. It is the process of bone development from fibrous membranes. It is involved in the formation of the flat bones of the skull, mandible and the clavicle. This type of ossification also helps in healing of bone fractures.
Endochondral Osssification: Method of forming a bone through cartilage intermediate. It is also involved in the formation of long bones.
<h2>Answer:</h2>
The mRNA is important for carrying the sequence information of amino acid in poly peptide chain. While tRNA carry the specific amino acids from cytoplasm to the poly peptide chain according to the message in mRNA.
<h3>Explanation:</h3>
- mRNA is the message from the DNA in the form of specific nucleotide sequence.
- mRNA is complementary sequence of nucleotide formed in the process of transcription in nucleus.
- While tRNA are also produced in the nucleus from the DNA but they do not contain any message for the poly peptide production. While they are transported to cytoplasm and their function is the transport of amino acid from cytoplasm to growing poly peptide chain.
I would say that a bar graph will most helpful.<span>≧◡≦</span>