If echinoids use pheremones to communicate, then what do echinoids use to communicate? Answer choices: - light - Chemical energy - Decibels - pheremones - writing - Energy - heat produced - language
pheremones

If astronauts require dehydrated food for extended flights, then astronauts require what food for extended flights? Answer choices: - Echinoderm. - layers of fat - dehydrated - fresh - hand picked - nutrients - frozen - hydration
dehydrated

Q: If viruses are so small that they can be seen only with an electron lens, then viruses are so small that to see them a scientist would have to use what kind of lens? Answer choices: - Refract it - refraction of light - an electron lens - an image - rays or beams - bending light rays - A computer - flashlights
A: an electron lens

Question: If the force of water against the seed coat causes Germination, then the force of water against the seed coat causes? Answer choices: - dormant state - Regrows it - peachleaf willow - warmth - erosion - squeeze - cactuses - germination
Answer: germination

*Question*
If inner ear problems can affect ability to sense and maintain body position, then what can affect ability to sense and maintain body position? Answer choices: - ear canal - colors of the spectrum - movement of tectonic plates - inner ear problems - energy of moving objects - ear wax buildup - pierced ears - Electrical energy
**Answer**
inner ear problems

If sight is the ability to see when light allows an image to be focused on the retina, then what is it called when light allows an image to be focused on the retina? Answer choices: - Blindness - photons - lenses - Cognition - Mirrors - Seesaw - Sight - Summer
Sight