A1 On which surface of the leaf did most bubbles appear?
A2 The bubbles contained gas that came out from inside the leaf.
Which part of the leaf do you think the gas came from? (Look at
the diagram of the inside of the leaf above.)
A3
Suggest how the gas got out of the leaf.
A4
Use what you know about the effect of heat on gases to explain why
the gases came out of the leaf when it was put into warm water.

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain

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

The part of the eye that closes and opens to let light in is .