Q: What causes natural ripening in fruit? Choices: - sulfur - chloride - acid - ethylene A:
ethylene

Q: How does the epidermis renew its layer? Choices: - loofah - scabbing - exfoliating scrub - shedding dead cells A:
shedding dead cells

Q: What is the inner layer of skin called? Choices: - connective layer - hypodermis - the epidermis - the dermis A:
the dermis