Q: Not all cells of a leaf carry out photosynthesis. cells within the middle layer of a leaf have chloroplasts, which contain the photosynthetic what? Choices: - pipes - structure - wires - apparatus A:
apparatus

Q: If two populations do not mate and produce fertile offspring, what results? Choices: - same species - large species - small species - separate species A:
separate species

Q: Which word describes how an extracellular solution can change the volume of a cell by affecting osmosis? Choices: - velocity - trichina - instability - tonicity A:
tonicity

Q: The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that does what? Choices: - pressure the eye - opens the eye - moisturizes the eye - closes the eye A:
closes the eye