The solution to this is to use the n = c / v equation
Where:
c is the speed of light: 3x10^8; and
The idea that v = m/s 
So plug in the m/s for v in the n = c v equation and you will
get:
1.5 = (3 x 10 ^ 8)/ ((4.5m)/s))
Therefore, the time should be 2.25 x 10 ^ -10 seconds.
 
        
             
        
        
        
Answer:
D. It has a strong influence on the ecosystem.A keystone species is a non-abundant species in an ecosystem. This species is important for the survival of the ...
Explanation:
 
        
                    
             
        
        
        
Igneous - A rock formed by the cooling and crystallization of magma (molten rock) at or below the Earth's surface. Sedimentary - A rock formed as a result of the weathering process, either by compaction and cementation of rock mineral fragments, or the precipitation of dissolved minerals.
        
                    
             
        
        
        
Answer:I think it is part B
Explanation:
 
        
             
        
        
        
Answer:
hypha
mycelium
fruiting body
spores
Explanation:
<em>A typical fungi thallus includes many filamentous hypha that combine to form mycelium that grows underground, and produce a fruiting body reproductive structure that produce spores that disperse on the wind to new habitat.</em>
Fungi body are generally made up of hypha, a network of which forms the mycelium. The mycelium grows underground within the substrate and occasionally bring out fruiting bodies which bear the sporangium containing the spores. The spores act as agent of dispersal and are used to form new organisms when the conditions are right.