Answer: D. The succession of community is completed.
Explanation:
A succession can be define as a series of gradual changes that occur in the biotic community of the ecosystem with respect to the changes that occur in the abiotic or non-living factors with respect to time until the ecosystem attains stability. 
A climax community is the community that develops in the end of the ecological succession. It is the stable community which does not require any further change to occur. With the development of the climax community the succession completes. 
 
        
                    
             
        
        
        
Answer:
2, 6 are the one you should select
Explanation:
 
        
             
        
        
        
<h2>Law of independent assortment </h2>
Explanation:
- There are 8 distinct phenotypes, each one has a 12,5% of appearance: Since M=solid leaves D=normal height P= smooth skin. 
- Recessive gene characters can only be taken in homozygous recessive mmddpp.  
       1. MmDdPp: M=solid leaves D=normal height P= smooth skin. 
      2. MmDdpp M=solid leaves D=normal height pp= peach skin. 
     3. MmddPp M=solid leaves dd=dwarf height P= smooth skin.  
     4. Mmddpp M=solid leaves dd=dwarf height pp= peach skin. 
     5. mmDdPp mm=mottled leaves D=normal height P= smooth skin.  
     6. mmDdpp mm=mottled leaves D=normal height pp= peach skin.  
     7. mmddPp mm=mottled leaves dd=dwarf height P= smooth skin.  
    8. mmddpp mm=mottled leaves dd=dwarf height pp= peach skin.
Hence,The answer is all eight possible phenotypes from the cross MmDdPp x mmddpp are equally likely, resulting in a phenotypic ratio of 1:1:1:1:1:1:1:1
 
        
        
        
Answer:
- <u>Conventional plastics-</u>
"Plastics are typically organic polymers of high molecular mass, but they often contain other substances."
"Oil-based polymers is currently used in packaging applications. These are virtually all non-biodegradable, and some are difficult to recycle or reuse due to being complex composites having varying levels of contamination. 
- <u>Biodegradable plastics</u>-
 "They are largely manufactured from renewable natural resources, to produce biodegradable materials with similar functionality to that of oil-based polymers."
Explanation:
<u>Complex Issue-</u>
- Diversity of biodegradable materials and their varying properties makes it difficult to make simple, generic assessments such as biodegradable products are all ‘good’ or petrochemical-based products are all ‘bad’.
- Biodegradable packaging materials are most suitable for single-use disposable applications where the post-consumer waste can be locally composted.
 
        
             
        
        
        
It is true, because most of the steps of cellular respiration take place in the mitochondria. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.