Answer:
spleen is a correct answer.
Explanation:
Foreign particles circulating in the blood are filtered by the spleen
Spleen is present in the upper left area of the abdomen. 
Spleen function is to filter the foreign particles from the blood as it acts as a blood filter.
Spleen recognizes the damage and old red blood cells, foreign particles.
As the blood flows into the spleen the white blood cell present remove and they attack the foreign particles.
Spleen acts as a blood filter by this way foreign particle are removed and the blood is filtered.
Thus(spleen) is a correct answer.
 
        
             
        
        
        
Answer:
Chromosomes 
Explanation:
Genes are segments of DNA, but they are found in Chromosomes.
Please let me know if this is any good
 
        
             
        
        
        
Gymnos were the first plants to inhabit the Earth, while Angios came later. The Angios rely on animals to pollinate them, by eating their fruit and then exposing the seed to grow in soil wherever they take it. Gymno means "naked seed" so these cone structures fall by wind gusts and grow where they land if fertile soil be present where they fall. Therefore the correct answer is:
C. Gymnosperms are mostly adapted for wind pollination; angiosperms are mostly adapted for animal pollination.
        
             
        
        
        
Without the primary consumers there would be no source of energy for carnivores or secondary consumers so no secondary consumers would exist in that ecosystem