If exposure to cold can induce many muscle fibers to contract at once, then many muscle fibers contracting at once can be induced by? Answer choices: - exposed genitalia - exposure to heat - sweating - exposed biceps - mechanical waves - Electrical energy - exposure to cold - Veins and arteries.
exposure to cold

(Question)
If vessels carry deoxygenated blood, then vessels carry deoxygenated what? Answer choices: - glucose - oxygen - Joules - liquid - organs - molecules - atoms - blood
(Answer)
blood

Ques: If most salamanders find mates by perceiving odors, then most salamanders find mates by what? Answer choices: - perceiving odors - Chemical energy - competing for resources - releasing colors - mechanical waves - during the day - spreading germs - sharing food
Ans: perceiving odors

(Q).
If keeping food fresh for a long period of time is a major user of electricity, then keeping food fresh is a major user of what? Answer choices: - kinetic energy - coal - eating dinner - hydration - heat energy - growing vegetables - electricity - Energy
(A).
electricity

Ques:If lakes are formed by clouds, then what are lakes formed by? Answer choices: - erosion - streams - desert - flooding - mice - rivers - stars - clouds

Ans:clouds

If aradio converts electrical energy into sound, then aradio converts electrical energy into what? Answer choices: - sound - waves - photons - touch - engines - light - smell - motion
sound