Chromosomes are made up of protein and nucleic acid. Genes are located on chromosomes. Chromosomes are found in the nucleus.
The correct answer is arthropoda.
Phylum arthropoda includes animal which lack tissues. Arthropoda is termed as a proposed grouping of arthropods.
They are being characterized by their cuticle and jointed limbs which are made of chitin. Their brains are formed by fusion of ganglia and their brains are formed of fusion of different number of segments.
Arthropods contribute to supply of food in human either indirectly or directly as pollinators of crops.
The best and most correct answer provided by the question is HBr, the most powerful and dangerous acid. I hope my answer has come to your help. hope this helps and have a nice day!
Earthquakes, mountains, and islands.
