Rock that forms from particles put down by water or wind is igneous rock

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Archaebacteria use for movement. celia flagella pili cell walls

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic