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.)
Best Answer: ribosomes, basically, is the machinery that helps build proteins. Ribosomes are found outside the cell's nucleus and work with mRNA and tRNA to form protiens from amino acids.mRNA fits within the ribosome, and each codon (a set of three ribonucleic acids) code for a specific amino acid.The tRNA attaches the amino acid to the last on the chain and then leaves.ibosomes are found outside the cell's nucleus and work with mRNA and tRNA to form protiens from amino acids. mRNA fits within the ribosome, and each codon (a set of three ribonucleic acids) code for a specific amino acid.