Do you need specific sources on this for a paper? I️ would use easybib it is a great source to get bibliographies done quick.
Answer:
hkafb I have to go to a meeting
Answer:
If predators increase then prey would decrease.
Explanation:
wow, this is hard, lol. I found one but there is one I am just not sure about but I did find one more for you and hope its not too late.
Answer:
Option D, A subject is observed both before and after two exposures to the treatment.
Explanation:
In A-B-A-B design the alphabets have following meaning
a) First A – It is the baseline value or the value measured before treatment
b) First B – It is the treatment measurement
c) Second A - It is the withdrawal of treatment
d) Second B – It is the reintroduction of treatment
The second A is known as the reversal phase in which the intervention is withdrawn to see if the target behavior returns to the baseline behaviour
Thus , there are two measurements involved one before the intervention and second after the intervention
Option D is correct