Answer the following question given this paragraph: Consider the example of water forming from hydrogen and oxygen. Both hydrogen and oxygen gases exist as diatomic ("two-atom") molecules. These molecules are the reactants in the reaction. The Figure below shows that bonds must break to separate the atoms in the hydrogen and oxygen molecules. Then new bonds must form between hydrogen and oxygen atoms to form water molecules. The water molecules are the products of the reaction. Q: What is the name for a molecule with two atoms? Choices: - hydrostatic - ionized - covalent - diatomic A:
diatomic
(Question)
Answer the following question given this paragraph: membrane are nonpolar). Some examples of these are other lipids, oxygen and carbon dioxide gases, and alcohol. However, water-soluble materialslike glucose, amino acids, and electrolytesneed some assistance to cross the membrane because they are repelled by the hydrophobic tails of the phospholipid bilayer. All substances that move through the membrane do so by one of two general methods, which are categorized based on whether or not energy is required. Passive transport is the movement of substances across the membrane without the expenditure of cellular energy. In contrast, active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP). Q: What is the movement of substances across the membrane without the expenditure of cellular energy called? Choices: - inner cell transport - immune transport - active transport - passive transport A:
(Answer)
passive transport
Ques: Answer the following question given this paragraph: Matter is anything that has mass and volume. Mass is the amount of matter in a substance. Volume is the amount of space matter takes up. Q: What is the term for anything that has mass and volume? Choices: - gass - energy - liquid - matter A:
Ans: matter
(Q).
Answer the following question given this paragraph: The rate at which a device changes electric current to another form of energy is called electric power . The SI unit of powerincluding electric poweris the watt. A watt equals 1 joule of energy per second. High wattages are often expressed in kilowatts, where 1 kilowatt equals 1000 watts. The power of an electric device, such as a microwave, can be calculated if you know the current and voltage of the circuit. This equation shows how power, current, and voltage are related:. Q: What term describes the rate at which a device changes electric current to another form of energy? Choices: - kilowatts - voltage - kinetic energy - electric power A:
(A).
electric power
Ques:Answer the following question given this paragraph: Birds have a large brain relative to the size of their body. Not surprisingly, the part of the brain that controls flight is the most developed part. The large brain size of birds is also reflected by their high level of intelligence and complex behavior. In fact, birds such as crows and ravens may be more intelligent than many mammals. They are smart enough to use objects such as twigs for tools. They also demonstrate planning and cooperation. Most birds have a poor sense of smell, but they make up for it with their excellent sense of sight. Predatory birds have especially good eyesight. Hawks, for example, have vision that is eight times sharper than human vision. Q: Not surprisingly, what is the function of the most developed part of a bird's brain? Choices: - controlling digestion - controlling breeding - controlling thought - controlling flight A:

Ans:controlling flight
Ques:Answer the following question given this paragraph: Some of the largest, and most beautiful, natural crystals can be found in the Naica mine, in Mexico. These gypsum crystals were formed over thousands of years. Groundwater that is rich in calcium and sulfur flowed through an underground cave. Check it out:. Q: In what country can some of the largest natural crystals be found? Choices: - spain - germany - canada - mexico A:

Ans:
mexico