Answer: a. cervical enlargement.
Explanation:
Cervical enlargement corresponds to the enlargement of the spinal cord. The spinal cord is the origin of the spinal nerves that contribute to an important task of supplying blood to the upper limbs.
The cervical enlargement results in an increase in the volume of the motor cells in the ventral part inside the grey matter. The motor neurons which are sited posteriorly supply to the upper limbs. Those which supply to the distal muscles are situated further posteriorly.
Answer: metagenomics
Explanation:
Metagenomics is the study of the collective genome of the microorganisms obtain from the environment. The study can provide details of the microbial diversity and ecology for a particular environment. It allows the identification of the specific microbial species from the mixture of genomic samples. The metagenomics is useful in solving the problems related to other fields such as medicine, agriculture, engineering and ecology.
The answer to that question is organic compound. Organic compound is the compound that is defined as any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon. Organic compounds are also vital when it comes to life processes which take place in all organisms.