Answer:
C
Explanation:
There was no C and D on yours but here is a picture of my son's exam.
 
        
             
        
        
        
Land fills don't take over as much bc there is less stuff being thrown away
        
                    
             
        
        
        
Answer: 
4 gametes
The cells that enter meiosis II are the ones made in meiosis I. These cells are haploid—have just one chromosome from each homologue pair—but their chromosomes still consist of two sister chromatids. In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes.
Explanation:
 
        
             
        
        
        
Answer:
There are many methods to directly measure biomass of herbaceous plants, but, it is difficult to estimate biomass of shrubs and trees. Peak standing crop may be difficult to measure in ecosystems with a large variety of species because each species will generally reach it's peak phytomass at a different time of year.
Explanation: