Most organisms rely on the sun as a primary source of energy
        
             
        
        
        
Answer:
We might lose things such as plastic bags, water bottles cardboard and glass it would be a shame if any of these things got lost we could be using the glass to help us build structures or we can even build things out of plastic and we can try helping people by building gains Lego blocks to craft out a house for them.
 
        
             
        
        
        
Answer:
Homology
Explanation:
Homology refers to the presence of similar or shared body structures, body parts, gene sequences, proteins, etc. among various lineages. It represents divergent evolution of these lineages from a common ancestor. 
Presence of various similar structures in human and salamander reflects the fact that these two species have shared a common ancestor during their evolution. The shared ancestry between human and salamander led to the presence of various homologous body parts and identical gene sequences in them.
 
        
             
        
        
        
Affirmative, that is correct.
A genetic disorder is nothing more than an abnormal occurrence in a genome, which means that if you change DNA you'll change the genome, and if the change isn't acceptable, genetic disorders can occur easily.
Genetic disorders is a fun field within genetics, and it isn't easy. The functioning of a gene might be an easy concept now a days, but we haven't mastered it. For example, it's not like maths:
- Somebody comes up with a new, unsolved problem, and tries to solve it, and while doing that, the person can create laws, theorems, equations, etc.
Once you come up against a genetic disorder (you can't just create a genetic disorder to study it) you have to study the genetic disorder itself, what caused it and why.
Hope it helped,
BioTeacher101