Answer the following question given this paragraph: In order to maximize their distance from one another, the four groups of bonding electrons do not lie in the same plane. Instead, each of the hydrogen atoms lies at the corners of a geometrical shape called a tetrahedron. The carbon atom is at the center of the tetrahedron. Each face of a tetrahedron is an equilateral triangle. Q: What shape is each face of a tetrahedron? Choices: - asymmetric triangle - oval - trapezoid - equilateral triangle A:
equilateral triangle
(Question)
Answer the following question given this paragraph: The second stage of photosynthesis takes place in the stroma surrounding the thylakoid membranes of the chloroplast. The reactions of this stage can occur without light, so they are sometimes called light-independent or dark reactions. This stage of photosynthesis is also known as the Calvin cycle because its reactions were discovered by a scientist named Melvin Calvin. He won a Nobel Prize in 1961 for this important discovery. Q: Which cycle is named after the scientist melvin calvin? Choices: - krebs cycle - melvin cycle - melcal cycle - calvin cycle A:
(Answer)
calvin cycle
Ques: Answer the following question given this paragraph: User:helix84/Wikimedia Commons. Gas exchange is the movement of oxygen into the blood and carbon dioxide out of the blood . CC BY 2.5. Q: What gases move in and out of blood during gas exchange? Choices: - oxygen, carbon monoxide - nitrogen, carbon dioxide - oxygen, nitrogen - oxygen, carbon dioxide A:
Ans: oxygen, carbon dioxide
(Q).
Answer the following question given this paragraph: Water is an amazing molecule. It has a very simple chemical formula, H 2 O. It is made of just two hydrogen atoms bonded to one oxygen atom. Water is remarkable in terms of all the things it can do. Lots of things dissolve easily in water. Some types of rock can even completely dissolve in water! Other minerals change by adding water into their structure. Q: What is the common term for the chemical formula h 2 0? Choices: - hydrogen - air - oxygen - water A:
(A).
water
Ques:Answer the following question given this paragraph: Q: Many parasites have complex life cycles involving multiple ? Choices: - features - viruses - diseases - hosts A:

Ans:hosts
Ques: Answer the following question given this paragraph: illness that occurs when harmful bacteria enter the digestive system in food; commonly called food poisoning. Q: What do you call the illness that occurs when harmful bacteria enter the digestive system in food? Choices: - bacteria poisoning - nutrition poisoning - meat poisoning - food poisoning A:
Ans:
food poisoning