Q: Q: What is the term for something that limits the growth or development of an organism, population, or process? Choices: - controlling factor - stumbling block - variable - limiting factor A:
A: limiting factor

Q: Q: What phenomenon is essential in order for evolution to occur because it increases genetic variation and the potential for individuals to differ? Choices: - radiation - replication - natural selection - mutation A:
A: mutation

Q: Q: Cell transport refers to the movement of substances across what structure? Choices: - cell wall - chloroplasm - phloem - cell membrane A:
A: cell membrane

Q: Q: The uranium series is a chain constituting one what, which encompass naturally occurring isotopes of the heaviest elements? Choices: - nuclear decay family - gland decay family - fuel decay family - radioactive decay family A:
A: radioactive decay family