<span>Since muscle contraction depends on interactions between actin, myosion and some intermediate molecules, the primary protein structure of such proteins and their spatial conformation are fundamental for their functioning. For example, actin and myosin, both filamentous proteins that slide past each other or troponin/tropomyosin interactions that blocks the binding of myosin to actin.</span>
        
             
        
        
        
whichever one comes first like the first step.
 
        
             
        
        
        
Answer:
The depth at which Drew found the algae
Explanation:
The dependent variable was the depth at which he found the algae, because that is what he measured on each day.
The independent variable was the sky conditions, since that changed from clear to cloudy, which impacted the dependent variable/the depth of the algae.
 
        
             
        
        
        
it’s somehow re-jiggered its
taste system so that the attractant that humans used to draw the insect to
poison bait—the sugar glucose—now tastes bitter to the roach, and they avoid it.
cockroaches began appearing that avoided the baits, and did so not because they
were averse to the poison, but because they were averse to the attractant, glucose. This new
trait turned out to be heritable, that is, it had a genetic basis.