Nocturnal refers to animals that are active at night, as suggested by the context of the sentence.
Calculate 25% of $120: 0.25×120=30. Subtract the discount: 120−30=90.
The only conclusion that follows logically is that cats, being mammals, are part of the group "some mammals." There is no direct evidence about their color.
Subtract 5 from both sides: 2x=10. Divide by 2: x=5.
The mitochondria are known as the "powerhouse" of the cell because they generate ATP, the cell’s main energy source, through cellular respiration.
