Climate Zones Objectives: 1. Describe Earth's major climate zones. 2. Explain how climate zones are characterized. Notes: According to the three cell convection model of each hemisphere the Earth neatly separates itself into three distinct climate zones; the polar, temperate, and the tropical zones.limate Zones Objectives: 1. Describe Earth's major climate zones. 2. Explain how climate zones are characterized. Notes: According to the three cell convection model of each hemisphere the Earth neatly separates itself into three distinct climate zones; the polar, temperate, and the tropical zones.
The nucleus is a large roundish organelle. It is bounded by a double membrane which has numerous pores. Inside the nucleus are chromosomes and a dark region called a nucleolus which makes ribosomes. (Ribosomes are necessary for protein synthesis.)
Ribosomes are organelles that synthesize proteins for the cell and send protein to the nucleus. Ribosomes can be free floating in the cytoplasm, or can be attached to the oute â¦ r surfaces of the rough endoplasmic reticulum and are known as bound ribosomes.They use amino acids to create the protein when the nucleus sends out messenger RNA to tell the ribosomes to make the protein.+ 74 others found this useful.ibosomes can be free floating in the cytoplasm, or can be attached to the oute â¦ r surfaces of the rough endoplasmic reticulum and are known as bound ribosomes. They use amino acids to create the protein when the nucleus sends out messenger RNA to tell the ribosomes to make the protein. + 74 others found this useful.