The correct answer to this open question is the following.
Although there are no options attached we can say the following.
I choose the following five forms of communication
1.- Verbal. It is the natural way to communicate, using our voice. My voice has to be clear and the message specific to be successful in what I try to convey.
2.- Written. I need to improve my written skill, learning grammatical rules, and improving my spelling. Minimize typos. I have to write developing my own style.
3.- Non-verbal. Signs and gestures are a great support for verbal communication. Everybody needs non-verbal communication to reinforce verbal communication.
4.- Formal. Formal communication is needed in my life when I am living official moments or scenarios in school or in the workplace. When I address teachers or seniors I have to use formal language.
5..- Informal. Informal communication is used when I am hanging with my friends, having a typical day-to-day conversation.
Answer:
Yes, both the heart and arteries contract to pump blood.
I don't see any options, but it would most likely be the one that is most caring and understanding.
During exercise, we undergo respiration. Therefore, we need oxygen and release carbon dioxide and water as waste products. When exercise become vigorous, we only run on anaerobic respiration with little oxygen, then lactic acid becomes a waste product instead of carbon dioxide and water. This occurs due to incomplete breakdown of glucose.
Best answer is C. lactic acid.
