Science Homework #14: Year 11

Science Homework #14:  Year 11


What evidence for large forces in the crust may show up in the rocks?
Which blood vessel could be described as one cell thick and just wide enough for red blood cells to pass through?
Which sex will a person with XY sex chromosomes be?
Give two types of evidence for proving evolution.
The absorption/ reflection of infra-red radiation by gases in the atmosphere when it is given out by the Earth causes the Earth's temperature to (increase/ stay the same/ decrease).
Give two ways energy might be lost from a food chain.
What is the voltage of the electrical supply found in homes?
A system of feedback which reverses any changes is known as a _____________ feedback system.