<span>The sequence is as follows:
c, d, a, b, f, g, e
The impulse starts at the SA node that has its own contraction rhythm (but can be faster or slower depending on other impulses or hormones). That impulse travels then through the atria and is slowed down by the atrioventricular septum except for a region in the right atrium called AV node where the impulse has continuity. The impulse travels then to the ventricles through the AV bundle. The impulse continues through bundle branches to other fibers: Purkinje fibers. These Purkinje fibers cause then a contraction that goes from the apex of the heart and rapidly through the ventricles.</span>
Earthquakes are seismic waves formed in the central area of the earth. Propelling around the earth creating a force that is released on the earths crust creating an earthquake. :)
Im assuming this is the question:
You have been studying a large lake ecosystem. You learn that toxins have been dumped into the water. You predict that the population with the highest concentration of the toxin would be the
ducks
zooplankton
algae
predatory birds
small fish
The answer to that question is predatory fish. In contaminated areas, bottom-dwelling fish are especially likely to have high levels of these chemicals because these substances settle to the bottom where the fish feed.
Here's an article to help in case:
https://www.doh.wa.gov/CommunityandEnvironment/Food/Fish/ContaminantsinFish
<span>The correct answer is mid-ocean ridges.
Most modern divergent plate boundaries are found in the mid-ocean ridges. When rocks are hotter such that they are higher and less dense, they cause ridges in the ocean. A boundary is being termed as divergent when you find plate boundary in the middle of an ocean being away from an edge.</span>
160 Joules
Kinetic Energy= (1/2)(m)(v^2)
Where m is mass and v is velocity or speed
KE= (1/2)(5)(64)
KE= 160 Joules