Girl what the hell are u on
The distribution and abundance of organisms is determined by the interactions between organisms and between the non living environment. Energy and nutrients move within and between biotic and abiotic components of ecosystems via physical, chemical and biological processes. Human activity and natural events can have a profound effects on population, bio diversity and ecosystem processes
Answer:
do not bind the small ribosomal subunit.
Explanation:
5' CAP is a structure present only in the mRNA molecule. It is characterized as a "helmet" added to the 5' end of the mRNA molecule.
The main function of 5' CAP is to protect mRNA in the cytoplasm (when it leaves the nucleus towards the ribosome). This is because in the cytoplasm can be found the enzymes ribonucleases and fostases that can alter the function of proteins that allow the mRNA to bind to the smaller subunit of the ribosome.
Since tRNA and rRNA do not need to be linked to the ribosome, they do not need the presence of 5' CAP in their compositions.
Answer:
The sympathetic nervous system originates in the spinal cord and its main function is to activate the physiological changes that occur during the fight-or-flight response. This component of the autonomic nervous system utilises and activates the release of norepinephrine in the reaction.