The best answer is A. The purpose of the cell wall is to hold the cell in a specific shape, usually rectangular or square. For example, a plant cell's wall keeps it rigid so that the plant can stand up. 
If the cell does not have a wall, it can easily change shape to accommodate for things coming in and out of the cell. 
Hope this helps!
        
             
        
        
        
<span>b.) organism and health</span>
        
                    
             
        
        
        
Pros: Might someday cure disease, might someday increase crop yeild, might create things that can be of our use. 
Cons: Genetic engineering could cause food allergies, have bad side affects, it could kill animals over time. 
I hope this helps. 
        
             
        
        
        
Answer: A: Pine, Cedar and Mango.
B: Pine and Cedar
C: Mango, Cedar and Elm
D: Pine and Cedar
Explanation: Evergreens plants always have there leaves on regardless of the season, because their roots go very deep into the soil getting water and nutrients far below the levels other tap roots can go, they are mainly found in the rain forest region that have abundance of water. Example, Mango
Deciduous trees are usually found at desert places that dont always have water, so they lose their leaves during etreme weather to reduce the rate of evaporation of water on its surface. Example, Maple.
Hardwood: These are flowering plants. they usually have broad leaves and nuts. example, Mahogany.
Conifers: These are cone bearing seed plants. they are perennial and woody plants. Example Pine.
 
        
             
        
        
        
Monoploid organisms reproduce asexually since they need to transmit all of their genetic material to their offspring. Diploid organisms, have 2 copies of their genetic material that differ slightly in their genes. Since the progeny gets half of the DNA from each parent, we have that new combinations can emerge; for example, if the mother is AA for some allele and the father aa, their offspring will be Aa, a new genotype. This might have different implications (for example, the recessive gene for thalassemia also provides resistance to malaria). Finally, during meiosis, there is also an event called crossover that increases the genetic variation of the offspring.