Answer the following question given this paragraph: tiny gap between two adjacent neurons across which electrical messages are carried by chemicals called neurotransmitters. Q: Electrical messages are carried by chemicals called what? Choices: - receptors - amino acids - Biotoxins - neurotransmitters A:
neurotransmitters
(Question)
Answer the following question given this paragraph: Gravity near the Earth pulls an object downwards toward the surface of the Earth with an acceleration of . In the absence of air resistance, all objects will fall with the same acceleration. The letter is used as the symbol for the acceleration of gravity. When talking about an object's acceleration, whether it is due to gravity or not, the acceleration of gravity is sometimes used as a unit of measurement where . So an object accelerating at 2g's is accelerating at or. Q: Represented in equations by the letter "g", what pulls objects down to the earth's surface? Choices: - energy - motion - light - gravity A:
(Answer)
gravity
Ques: Answer the following question given this paragraph: When an element gains one or more electrons, an anion is formed. Nonmetals typically become anions when they interact with other chemical species. Q: What is formed when an element gains one or more electrons? Choices: - cation - ion - neutron - anion A:
Ans: anion
(Q).
Answer the following question given this paragraph: New species develop naturally through the process of natural selection . Due to natural selection, organisms with traits that better enable them to adapt to their environment will tend to survive and reproduce in greater numbers. Natural selection causes beneficial heritable traits to become more common in a population and unfavorable heritable traits to become less common. For example, a giraffe's neck is beneficial because it allows the giraffe to reach leaves high in trees. Natural selection caused this beneficial trait to become more common than short necks. Q: What is it called when organisms with traits that better enable them to adapt to their environment tend to survive and reproduce in greater numbers? Choices: - natural distribution - adaptation - evolution - natural selection A:
(A).
natural selection
Ques:Answer the following question given this paragraph: The Krebs cycle completes the breakdown of glucose begun in glycolysis. If oxygen is present, pyruvate enters the mitochondria and is converted to AcetylCoA. AcetylCoA enters the cycle by combining with 4-carbon oxaloacetate. Study the diagram to confirm that each turn of the cycle (two for each glucose) stores energy in 3 NADH+H + , one FADH 2 , and one ATP (from GTP), and releases 2 CO 2 . The Krebs cycle is also known as the Citric Acid Cycle or the tricarboxylic acid cycle (TCA cycle). Q: What cycle completes the breakdown of glucose begun in glycolysis? Choices: - bacterium - vireos - priebus - krebs A:

Ans:krebs
Question: Answer the following question given this paragraph: Cells come in many different shapes. Cells with different functions often have different shapes. Q: Cells with different functions often differ in what physical property? Choices: - density - size - weight - shape A:
Answer:
shape