Answer:
there are four trophic levels first are producers then primary  consumers then secondary consumers then teritary consumers
Explanation:
grass - grasshopper - frog - snake - eagle is a simple food chain
 
        
                    
             
        
        
        
Answer:
1. Emergent Properties
2. The Cell
3. Heritable Information
4. Structure and Function
5. Environmental Interactions
6. Feedback and Regulation
7. Unity and Diversity
8. Evolution
9. Inquiry
10. Science, Technology, and Society
Explanation:
1. The fact that complex organisms derive from small, simple bases. 
2. Basic unit of life
3. Found in dna of all living organisms, passed from generation to generation.
4. All parts of organisms serve a purpose. (heart pumps blood)
5. All organisms are involved with their surroundings (plants use sunlight for energy
6. Bodies give us feedback on whether or not things are safe for habitation. (its too hot or cold)
7. All organisms may differ in looks but we are made up of similar DNA
8. explains how organisms develop over decades
9. scientists search for new information
10. We learn about the world through biology.
 
        
             
        
        
        
A Different enzymes<span> are synthesized in </span>specific<span> areas of the cytoplasm. B Most </span>enzymes<span> can </span>catalyze<span> many different </span>reactions<span>. C An </span>enzyme<span> binds to a </span>specific<span> substrate (reactant) for the </span>reaction catalyzed<span>.</span>
        
             
        
        
        
In photosynthetic organisms, NADPH is produced by <span>ferredoxin-NADP+ reductase</span><span> in the last step of the electron chain of the </span>light reactions<span> of </span>photosynthesis<span>. It is used as reducing power for the biosynthetic reactions in the </span>Calvin cycle<span> to assimilate carbon dioxide. It is used to help turn the carbon dioxide into glucose. It is also needed in the reduction of nitrate into ammonia for plant assimilation in </span>nitrogen cycle<span>.
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