Answer:
Nucleus
Explanation:
 The DNA of a eukaryotic cell is found in an internal compartment of the cell called the nucleus
 
        
             
        
        
        
Answer:
This question lacks options, options are: 
a) indirect
b) mosaic
c) determinative
d) regulative
e) direct.  
The correct answer is d.
Explanation:
The egg (ovum) like the embryo during the first embryonic divisions, do not possess any sign of polarity. This development mechanism can be called regulative development(in contrast to the mosaic model) since the fate of the cells that originate is not fixed and can be modified during development. In regulative embryos, part of the embryo can be removed and the remaining cells can compensate for the loss and give a complete individual as the final product.The strongest evidence that continues to support this regulatory model is based on the plasticity or potential that mammalian cells possess before implantation. It is known that the blastomeres produced by the first divisions can be replaced with each other or even can be eliminated without apparently altering the embryonic development and therefore they are equivalent (without polarity).
 
        
             
        
        
        
<span>cellular respiration 
Hope it helps</span>
        
                    
             
        
        
        
Answer:
I would say Phosphate Groups. 
Explanation:
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide. 
 
        
             
        
        
        
Answer:
takes substances captured from the external environment (air and carbon sources) and converts them into energy for building more cells and tissues and for carrying out life-sustaining activities. It also generates waste products and water.
Explanation: