Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA<span> (tRNA) molecules carry amino acids to the ribosomes during protein synthesis.</span>
Answer:
Tubules?
Explanation
The trachea, spiracle, and air sac are part of their respiratory system, Howeber, the tubules are what take away the carbon dioxide from their system. Im not sure if they produce the carbon dioixde. But they are a part of what removes the carbon-dioxide from their body.
Producción de leche, cabello, temperatura corporal constante y sistemas circulatorios y respiratorios altamente desarrollados.
Answer:
The finger like projections of the small intestines are called villi.
Explanation:
The structure of villi is just like human finger. Villi increases the surface area of small intestine which increases the absorption. Villi is a part of small intestine which is responsible for the absorption of nutrients that are present in the food particles. These nutrients are again combined with the blood and used by the body. Villi do not helps in the digestion of food substances, they can only absorb.
