Answer:
tRNA and mRNA can leave the nucleus.
Explanation:
tRNA, when mature and correct, can leave the nucleus and enter the cytoplasm. mRNA can leave the nucleus through pores in the nuclear membrane. However, DNA cannot leave the nucleus, it has to be transcribed into RNA.
Answer: RNA
Explanation: I have recently learned this.
The white blood cells protect the body against both infectious disease and foreign invaders.
The answer is d. ribs and sternum