Answer: exercise secretes a hormone called endorphins which makes you happy
Answer:
intense cravings for the drug when it is not available
Explanation:
Answer:
answer
Explanation:
The sentence that surprised me and why is that laughter burns calories, this sentence surprised me because it talks about that laughter burns calories.
Answer: Yes, because Sam is experiencing PTSD.
Explanation: PTSD is a psychiatric disorder that occurs to people after a traumatic experience. Since Sam survived a very bad car crash, he is traumatized and should seek professional help.
Hope this helps! :)
Answer:
The reason why, in terms of evolution, organisms have sex may seem rather obvious – they do it to reproduce. Clearly, natural selection must favour individuals who can reproduce over those who can't. For many species there is an alternative: asexual reproduction. .
Many plants are able to propagate themselves using asexual reproduction. ... Traditionally, these plants survive well under stable environmental conditions when compared with plants produced from sexual reproduction because they carry genes identical to those of their parents.
