The total energy from an isolated system is constant; energy can be changed from one form to another, but can't be created or destroyed.
Answer:
The insecticide must have contain strong, active chemicals that are poisonous and harmful to owls which resulted in their demise while on the other hand, grass hopper or mice may be resistant/ or tolerant to that chemicals that's why it don't have effect on them.
Explanation:
The answer is H. He is mechanically digesting his food.
In plants the reproductive structure that produces pollen and seeds is the xylem is the answer
Answer:
The correct answer is B. 1, 2, and 4
Explanation:
Option no 1 is true because before maturity, the mosquitoes will not be able to cause malaria and will be easier to kill.
Option no 2 is true because in order to ensure a safe control, the Brachiola gambiae shouldn't be dangerous to other animals or insects.
Option No 3 is not true because Mosquito larvae will contain the male larvae also. As the male larvae are not harmful, hence their growth shouldn't be stopped or they should not be killed.
Option No 4 is correct because before applying any controlling measures for a problem, it should always be kept in mind that it should not have negative effects on other food systems.
Answer No 5 is false because as the females Anopheles are harmful, they should be killed. The male Anopheles are not harmful hence, they should not be killed.
