(Question)
Echinoderms use pheromones to communicate with each other, and all echinoderms are marine and benthic. Given these facts, marine and benthic species use pheromones to what among the following options: - seed dispersal - produce offspring - life-sustaining - float underwater - defense mechanism - arm each other - communicate with each other - live in marine bays
(Answer)
communicate with each other

(Question)
Alight bulb is used for seeing in the dark, and just as darkness is the absence of light. Given these facts, what are used for seeing in the absence of light among the following options: - light bulbs - cactuses - satellites - microscope - photons - bushes - energy - focusing a lens
(Answer)
light bulbs

(Question)
Annelids are worms such as the familiar earthworm, and annelids have bodies that are segmented. Given these facts, earthworm bodies are: among the following options: - fertile - segmented - migrate - allow growth - revolving - more abundant - Loose - Absorb light
(Answer)
segmented