In eukaryotic cells, the timing of the cell is regulated by?
a) centrioles
b) cyclins
c) spindle fibers
d) the nuclear envelope
21. cancer is a disorder in which some cells have lost the ability to control their
a) size
b) spindle fibers
c) growth rate
d) surface area

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3