It’s the third answer that says dead virus
Answer: Yes, energy is required
Explanation:A selectively permeable membrane chooses which molecules are allowed to pass based on specific criteria (e.g., molecular geometry). This facilitated or active transport may require energy. Semipermeability can apply to both natural and synthetic materials. In addition to membranes, fibers may also be semipermeable.
<span>maintains a constant INTERNAL environment
so other options included internal variable and external environment. but its internal and environment</span>
Answer:
The molecules in the air can be displaced by a force creating sound waves. Vibrations generally travel faster in a solid compartment than as in gases.
