Q: The action of sunlight on the skin triggers the body to produce what vitamin? Choices: - Vitamin A - metabolic d - tissue d - vitamin d A:
vitamin d

Q: When a fluorine atom gains an electron, it becomes a negative what? Choices: - hydrogen ion - sulfide ion - potassium ion - fluoride ion A:
fluoride ion

Q: Q: Name the most famous satellite of the earth? Choices: - demos - skylab - sputnik - the moon A:
A: the moon

Question: Q: The common carotid artery gives rise to the external and internal carotid arteries. the external carotid artery remains superficial and gives rise to many arteries of this? Choices: - chest - stomach - back - head A:
Answer: head

*Question*
Q: What is the term for animal-like protists that are usually single-celled? Choices: - eukaryotes - vertebrates - larvae - protozoa A:
**Answer**
protozoa

(Question)
Q: What is it called when waves interact with other waves? Choices: - combination interference - wave impact - wave collision - wave interference A:
(Answer)
wave interference