I Think The answer is a or c Try Those options if There wrong I’ll fix Them for you To be sure you get The right answer Message Me if I’m wrong
Answer:
Cats also purr when they are nervous or in pain, leading some experts to believe that this uniquely feline vocalization is actually a method of self-healing. A domestic cat's purr has a frequency of between 25 and 150 Hertz, which happens to be the frequency at which muscles and bones best grow and repair themselves.
Explanation:
Answer:
The correct answer is option C. "disruptive selection".
Explanation:
Disruptive selection is a type of natural selection at which extreme values for a trait are favored, while intermediate traits are more likely to disappear. In this example the finches tended to have either small beaks or large beaks because small beaks are best at eating soft seeds and large beaks are best at cracking seeds. This is an example of disruptive selection because the two extreme values for the size of beaks are favored.
HIV is thought have originated by 
.
A. apes passing the disease to hunters.✔
Answer:
Psychoactive
Explanation:
Psychoactive effects of drugs are capable of changing the mood, awareness and thoughts of the users/consumers.
Psychoactivity of drugs gives rise to change in the information exchanges between the cells of the brain.They are also able to copy the effects and behavior of neurotransmitters. This gives rise to continued dependence and addiction of such drugs.
Example of psychoactive drugs include cocaine, cannabis, alcohol etc
