Secondary succession is a process started by an event (example forest fire) that reduces an already established ecosystem
Its either A or C. thats all i can say though but B and D you can rule out. I hope i helped a little
Answer:
Independent Variable: Give one group the drug and dont give the other group the drug
Dependent Variable:The data of if the drug improves the rats memory(if their memory is better, the same, or made worse)
Answer:
Capillaries connect the arteries to the veins. The arteries deliver oxygen rich blood to the capillaries, where the exchange for oxygen and carbon dioxide occurs.
Explanation:
Hope this helps!
Answer:ECG measures the electrical activity of the heart and how the I pluses travel through the heart... There by showing when the heart is beating normally or abnormally.. It can show an informed mind all this.
2.There are many causes of these but hyperkalemia ie high amounts of potassium in the blood can be a cause
Explanation:
