(Q).
If decomposition increases the amount of dead plant and animals in the soil, then what decomposes in soil? Answer choices: - swamp vegetation - roundworms - Echinoids - tunicates - Earthworms - some invertebrates - most cephalopods - Plant and animals
(A).
Plant and animals

(Q).
If chemical messengers travel throughout the body in the blood, then what travel throughout the body in the blood? Answer choices: - testes - matter vibrating - zygotes - gametes - kinetic energy - chemical messengers - Veins and arteries. - electromagnetic energy
(A).
chemical messengers

(Q).
If bears can keep warm, then what keeps warm? Answer choices: - bushes - muscles - Limbs - fibers - keratin - skin - bears - hair
(A).
bears