Q: Ultraviolet light causes sunburn, and furthermore, sunburn can cause premature aging and skin cancers. Given these facts, what can ultraviolet light cause among the following options: - chemical changes - Cold skin - killing insects - Healthy skin - disease - Skin cancer - symptoms - Low temperatures
A: Skin cancer

Q: Arthropods are the largest phylum of invertebrates, and invertebrates are animals without a backbone. Given these facts, what don't arthropods have among the following options: - an exoskeleton - legs - Bodily water - Damaged hearing - kinetic energy - a backbone - Energy - backs
A: a backbone

Q: Active immunity results when an immune response to a pathogen produces memory cells, and pathogens are simply a variety of diseases which kill insects. Given these facts, what prevents insects from being killed among the following options: - Fly swatter - Active immunity - Exfoliation - a cuticle - food - bugs - rays or beams - resistance
A: Active immunity

Q: Nephrons are the structural and functional units of the kidneys, and normally the kidneys manufacture urine. Given these facts, nephrons are the structural and functional units of what among the following options: - Something coming from a gland - A compound that donates proton - urine manufacturing organs - Veins and arteries. - critical organs - sensory neurons - food and shelter - the body's largest organ
A: urine manufacturing organs