The graph shows the variation in the number of species in two different ecosystems over one hundred years.

Both ecosystems are in the same biome, and have undergone similar environmental changes during the period. Suggest a plausible reason to explain why the number of species in Ecosystem 2 has decreased significantly, while Ecosystem 1 has maintained a nearly stable number of species.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!