Which is not a characteristic of the spiders?

a. four pairs of walking legs
b. book lungs for respiration
c. antennae and mandibles for sensory perception
d. body divided into cephalothorax and abdomen

Any sound above what db can cause hearing loss in human beings

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.