Answer:
False
Explanation:
Chronic fatigue syndrome refers to the condition of continuous or long term tiredness which is not corrected with the sleep.
There are many causes of such type of tiredness but the exact cause of the fatigue is not known as this symptom is common to many disorders. The main causes of chronic fatigue are the weak immune system, pathogens and the stress which is increasing with modernisation.
Since there are many causes of the fatigue syndrome therefore only repeated daily activities is not the only option and thus is false.
Thus, false is correct.
Answer:
B. Release body heat
Explanation:
Jackrabbits live in deserts, and therefore must release excess body heat through the surface area of their ears to avoid quickly overheating and dying.
Natural selection affects or changes a population and not only an individual organism because as there are somethings to be changed in a certain organism to adapt to the changes in the environment, all organisms in a certain species will be able to adapt and the changes therefore is collective.
