Answer the following question given this paragraph: Q: When do end portions of two nonsister chromatids trade places? Choices: - never - at night - during respiration - at every crossover A:
at every crossover
(Question)
Answer the following question given this paragraph: Q: If something is in the state of matter where it has both a definite shape and volume, then what state of matter is it in? Choices: - gas - plasma - liquid - solid A:
(Answer)
solid
Ques: Answer the following question given this paragraph: Cilia and flagella are extensions of the plasma membrane. Q: Cilia and flagella are extensions of what? Choices: - cell nucleus - protoplasm - cell wall - plasma membrane A:
Ans: plasma membrane
(Q).
Answer the following question given this paragraph: All ecosystems need a constant input of energy in the form of sunlight or chemical compounds. Living things can be classified based on how they obtain energy as producers, consumers, or decomposers. Q: The energy for an ecosystem can come from sunlight or _________? Choices: - radiation compounds - fossil fuels - rain - chemical compounds A:
(A).
chemical compounds
Ques:Answer the following question given this paragraph: Q: What muscles are used to pump water over the gills? Choices: - pharynx and tonsils - lungs and pharynx - muscles and pharynx - jaws and pharynx A:

Ans:jaws and pharynx
Ques:Answer the following question given this paragraph: The Krebs cycle and electron transport occur in the mitochondria. The Krebs cycle takes place in the matrix, and electron transport takes place on the inner membrane. Q: Where does the krebs cycle take place? Choices: - in the nitrogen - in the ozone - in the beam - in the matrix A:

Ans:
in the matrix