Ribosomes are the site of translation of strands of transferRNA into chains of amino acids. Ribosomes allow the reading of the genetic information coded for by the tRNA which codes for the position of amino acids along a protein
Answer:
The correct option is A. they evolved from land mammals.
Explanation:
Evolution can be described as a process through which organisms in a species change over a period of time due to the natural selection of the environment. Those organisms that have many similarities in their functions or structures are considered closer to one another and have the same common ancestors.
The properties mentioned in the question about cetaceans resembles the properties of land mammals. For example, cetaceans lack gills and breathe air. Land mammals also do not have gills and need to respire for living. The cetaceans have fin bones which are similar to the limb bones in the land mammals. Hence, these observations show that cetaceas have evolved from land mammals.
Answer:lakes and swamps
Explanation:any thing that is not man made
Answer: 25%?
Explanation: theres 4 children and the moms a carrier so 1/4 of 100 is 25%
<span>Simply because cells need both these types of molecules for proper function.</span>