Genus
The complete and correct hierarchy of taxonomic groups from largest to smallest are:
1) Domain
     1.1) Archaea  1.2) Bactera  1.3) Eukarya
2) Kingdom
     2.1) Animalia  2.2) Plantae  2.3) Fungi  2.4) Protista  2.5) Archaea  2.6) Bacteria
3) Phylum - has 35 phyla
4) Class 
5) Order
6) Family
7) Genus
8) Species
        
             
        
        
        
Answer:
true
Explanation:
frozen food will not perish
 
        
             
        
        
        
Answer:
Semicircular canals
Explanation:
Ear is one of the important sense organ responsible for hearing and equilibrium. Human ear is divided into three parts: outer ear, middle ear and inner ear.
Inner ear is mainly responsible for the equilibrium of the body. Vestibular apparatus together with semicircular canals is responsible for the dynamic equilibrium of the body. Dynamic equilibrium  involves head rotation and vertical movements of the body. 
Thus, the correct answer is option (a).  
 
        
             
        
        
        
Answer:
a. The maternal copy of UBE3A is expressed and the paternal copy is silenced.
Explanation:
When UBE3A chromosome is in neurons, paternal allele is silent and maternal allele is expressed in process of genomic imprinting. In some cases UBE3A is expressed from both paternal and maternal chromosomes. The paternal chromosome is blue whereas maternal chromosome is magenta.