The geometric method gives scientists the spreading direction to go with the spreading speed
This is because all land vertebrates share a common ancestor. All land vertebrates emanated from evolution form the oceans and seas from a group categorized as Sacropterygii. Therefore during the early phylotypic stages of embryonic development, the embryos of all land vertebrates look alike morphologically. It is believed it is during this stage that the basic plan of the body takes shape before it begins to diverge.
Vaccines and shots are typically made of a small controlled portion of the virus or disease to cause immunity to the large scale types.
In a ribosome there are 3 tRNA sites (P, A and E).
The P site, also called the peptidyl site, binds to the tRNA holding the growing polypeptide chain of amino acids. THIS IS YOUR ANSWER!...P or peptidyl
The A site (acceptor site) binds the aminoacyl tRNA which brings the new amino acid that will be added to the polypeptide chain.
The E site (exit site) serves as the exit and is where the tRNA that has now lost its amino acid lets go of the ribosome.
Initially by meiosis and then by mitosis.
This question is confusing. What I can tell you though, is that mitosis is the process in which cells divide and cause the animal fetus to grow, but it is meiosis that ensures the animal can develop as a fetus initially. (The 4 resulting haploid cells form a sperm gamete and an egg gamete, and they come together to form a zygote, which eventually develops into a fetus)