Q: Cancer is caused by mutations, which can be caused by pathogens, chemicals, or what else? Read this paragraph and choose the correct option from the provided answers: Cancer is caused by mutations, which can be caused by pathogens, chemicals, or radiation. Choices: - evaporation - convection - diseases - radiation A:
radiation

(Question)
Q: Slime molds are fungus-like protists that grow as slimy masses on what? Read this paragraph and choose the correct option from the provided answers: Slime molds are fungus-like protists that grow as slimy masses on decaying matter. They are commonly found on items such as rotting logs. Choices: - recycled matter - food matter - dark matter - decaying matter A:
(Answer)
decaying matter

Ques: Q: What phenomenon is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ? Read this paragraph and choose the correct option from the provided answers: Mutations are essential for evolution to occur because they increase genetic variation and the potential for individuals to differ. The majority of mutations are neutral in their effects on the organisms in which they occur. Beneficial mutations may become more common through natural selection. Harmful mutations may cause genetic disorders or cancer. Choices: - radiation - replication - natural selection - mutation A:
Ans: mutation

(Q).
Q: What do many cells depend on glucose for? Read this paragraph and choose the correct option from the provided answers: A gated channel protein is a transport protein that opens a "gate," allowing a molecule to pass through the membrane. Gated channels have a binding site that is specific for a given molecule or ion. A stimulus causes the "gate" to open or shut. The stimulus may be chemical or electrical signals, temperature, or mechanical force, depending on the type of gated channel. For example, the sodium gated channels of a nerve cell are stimulated by a chemical signal which causes them to open and allow sodium ions into the cell. Glucose molecules are too big to diffuse through the plasma membrane easily, so they are moved across the membrane through gated channels. In this way glucose diffuses very quickly across a cell membrane, which is important because many cells depend on glucose for energy. Choices: - food - heating - osmosis - energy A:
(A).
energy

Ques:Q: When is a moving car said to be in dynamic equilibrium? Read this paragraph and choose the correct option from the provided answers: Figure 9.3 This car is in dynamic equilibrium because it is moving at constant velocity. There are horizontal and vertical forces, but the net external force in any direction is zero. The applied force F app between the tires and the road is balanced by air friction, and the weight of the car is supported by the normal forces, here shown to be equal for all four tires. Choices: - at rest - at homeostasis - when accelerating - zero net force A:

Ans:zero net force

Q: What force occurs whenever two surfaces come into contact? Read this paragraph and choose the correct option from the provided answers: Even if Laura didn't try to stop the skateboard, it would stop sooner or later. That's because there's also friction between the wheels and the pavement. Friction is a force that counters all kinds of motion. It occurs whenever two surfaces come into contact. Choices: - tension - vibration - gravity - friction A:
friction