Hi there! I just finished studying the human body and so I can tell you with confidence that the Respiratory System is responsible for the exchange of oxygen and carbon dioxide. If you need more proof, the word Respiration itself<span> means</span> the action of breathing.
Answer:
Explanation:
Fish have scales for many reasons. Firstly, to protect the skin of the fish from attacks from predators, parasites and other injuries. Secondly, scales overlap each other in the same way that an armour would protect a person. Hence, providing a layer of protection for the fish.
Answer: Diploid; 2n
Explanation:
In many species, there are two representatives of each chromosome. In such species, the characteristic number of chromosomes is called the DIPLOID number. It is usually symbolized as 2n.
The two basic sets of chromosomes is called Homologous chromosomes, being two, it is called DIPLOID NUMBER (if one, it is Haploid number) and symbolized by 2n.
Species like man expresses the diploid number, so is a diploid specie
Meaning: A dark color or material obtained by heating organic matter or wood.
