Answer:
Tế bào được coi là đơn vị cơ bản của sự sống một phần vì chúng có dạng gói rời rạc và dễ nhận biết. Đó là bởi vì tất cả các tế bào được bao quanh bởi một cấu trúc gọi là màng tế bào - giống như những bức tường của ngôi nhà, đóng vai trò như một ranh giới rõ ràng giữa môi trường bên trong và bên ngoài tế bào.
Explanation:
A biologist whose interest lies primarily in the study of plants or animals can be called a naturalist, although these days it's more likely she'll be called a natural historian, a botanist, or a zoologist.
1. First Stage: Dilation and Effacement of the Cervix
a. early phase
b. active phase
c. transition phase
2. Second Stage: Pushing and Birth
3. Third Stage: Delivery of the Placenta
Answer:
Looking at tibetan highlanders who thrive at high altitudes- normally that would make us sick- they have adapted, 60% oxygen- could pose huge health issue (live with 10% less oxygen in blood than us)
Explanation:
Evolutionary adaptations- involve a change in the genetic makeup to help individuals survive in environment. Tibetans have adaptations to let them function at high altitudes
Translation is a complex process that translated the genetic information from the language of DNA in the language of RNA. The first step in this process is the binding of the initiator tRNA (that is bound to the aminoacid methionine) to the small ribosomal unit. Then, the small ribosomal unit joins the mRNA; it is the part of the ribosome mainly responsible for translating. After that, the initiator tRNA binds to the start codon. This reaction frees some initiation factors that make large ribosomal units bind to the small one. Hence, <span>the large ribosomal subunit completes the initiation complex afterwards. The role of the large ribosomal unit is mainly to make the peptidic bonds between the aminoacids in the new protein. After that, </span><span>amino acids are paired with anticodons, gradually forming a long chain</span>; this chain is called a polypeptide and is the skeleton of the protein that is created. Finally, this process stops when one of the three possible stop codons are reached.
