I think the answer is frequency if I remember correctly
        
             
        
        
        
Answer:Wildebeest are considered keystone species because their presence has myriad effects on the ecosystem, unlike those of any other species. Wildebeest are the "lawnmowers" of the Serengeti grassland. They keep grass short which in turn reduces the frequency of fires.
 
        
             
        
        
        
California is home to the largest, tallest, and oldest trees on earth, all of which are gymnosperms.
Gymnosperms are plants that have seeds and are usually coniferous trees. Given that those largest, tallest, and oldest trees are sequoias, this seems to be the correct answer.
Nonvascular plants are quite small. Seedless vascular plants is also incorrect, because sequoias have seeds. Angiosperms are flowers.
        
             
        
        
        
I believe the answer is commensalistic because it wouldnt be parasitic because the other isnt getting harm and its not mutual because both aren’t benefitting from it
        
             
        
        
        
Answer:
a. Carbohydrates provides energy and regulation of blood glucose.
b. The monomer/building block of a carbohydrate is a monosaccharide.
c. The building blocks of lipids are fatty acids.
d. Some examples can be oils, vitamins, and fats.
e. Lipids store energy.
f.  The building blocks of proteins are amino acids.
g.  Examples of proteins are meat, fish, eggs, and cheese(mainly foods you consume).
h. The building block of a nucleic acids is a nucleotide.
i. The biomolecules that have CHO are carbohydrates and lipids.
j. The quote"You are what you eat" means that it is important to eat good food in order to be healthy and fit.
<u><em>Hope it helps!</em></u>