He performed an experiment that explain what occurred on primitive earth billions of years ago. He sent an electrical charge through a flask of chemical solution of methane, ammonia, hydrogen and water. This created organic compounds including amino acids 
Hopes this help you.
        
             
        
        
        
Answer:
I would say that this would cause "overgrazing on public lands."
Explanation:
When people see that the fees are cheaper, they would send their livestock there. It might be alot of livestock though 
 
        
             
        
        
        
Answer:
a
Explanation:
a is the life cycle of a caterpillar/butterfly
 
        
             
        
        
        
Answer:
it's D. has cells
Explanation:
an organism is made of many different cells. what makes something not an organism is how it has no cells, and how it that can't carry out all of the basic physiological functions of a living thing. Organisms grow, adapt, respond to stimuli, and reproduce.
 
        
             
        
        
        
Answer:
6 in total; 3 viable and 3 non-viable
Explanation:
Robertsonian translocation is one of the types of structural alteration in chromosomes, in other words, a rearrangement between chromosomes, which can occur between five pairs of acrocentric chromosomes (chromosomes with the centromere close to the end of one of the "arms"): 13, 14, 15, 21 and 22.
An individual who has Robertson's translocation between chromosomes 14 and 21 generally has only 45 chromosomes. 
In addition, a carrier of this type of translocation can theoretically produce 6 types of gametes, however 3 of them are not viable.
As for the three remaining gametes: One is normal, and among the other two, one is balanced and the last is unbalanced.
So, theoretically, when combining a normal gamete, the probability of a child with down syndrome being born through these conditions is 1/3 (considering that the probability of producing a certain type of gamete is equal for the three types).