Answer:
a. True
Explanation:
Ribosomes are ribonucleoprotein complexes composed of RNA and proteins, which have two main roles 1-decode the message of the messenger RNA (mRNA) molecule and the formation of peptide bonds in the protein. For this purpose, each triplet of nucleotide bases or 'codon' in the mRNA sequence is used to assemble specific amino acids in the nascent polypeptide chain. Although different, both prokaryotic ribosomes and eukaryotic ribosomes are composed of two subunits: one small subunit that decodes the mRNA into a specific amino acid chain, and one large subunit that forms the peptide bonds in the polypeptide chain. Each ribosomal subunit is in turn composed of ribosomal RNAs and proteins. These ribosomal RNAs act as scaffolds by combining with proteins that assemble into ribosomes (i.e., small and large ribosome subunits).
 
        
             
        
        
        
These organisms that consisted only of unicellular were called prokaryotes. 
        
             
        
        
        
Answer;
The llama and the alpaca were used as beasts of burden in the Andes.
Explanation; 
-A beast of burden is drought animal that carries or pulls heavy loads, such as a donkey, mule, llama, camel etc.  
-The Andean animal used as a beast of burden is an Alpaca and the Llamas. They are docile, fluffy animals that can withstand the cold of the mountains. As such, they make excellent work animals.
-Male llamas have been been used as beasts of burden in the Peruvian and Bolivian Andes ranges for more than 4000 years. 
 
        
             
        
        
        
Meiosis produce variations in daughter cells whereas mitosis produce identical nuclei.
Hope this helps!
        
                    
             
        
        
        
Guard cell o is ordered to opening and closing of stomata.