A group of scientists examined a meteorite from Mars and found a carbon-rich substance that is produced when microorganisms decay. They concluded that the meteorite provided evidence there was once life on Mars. Why is this an emerging idea?

which Statement correctly describes why cells are so small? a) when cells are small the movement of food and waste can be efficiently handled by the cell membrane b) when cells are small they can adapt their shape more easily to fulfill their

Which property (a) determines the suitability of aluminium for making aircraft body?

How is ROY G. BIV related to electromagnetic waves?

The more root hairs a plant has, the more water and nutrients it can absorb. Which is an appropriate justification of this statement?

Which of the following processes starts with the nucleus and involves the endoplasmic reticulum and ribosomes? a. breaking down sugar to obtain energy in the form of ATP b. assembling amino acids into chains that form structures and enzymes c.

How Does crossing-over leads to greater variability of phenotypes?

After several miles of running and sprinting in intervals, the runner's muscles ache and feel fatigued. Which is the best explanation for what has occurred?

Which piece of lab equipment is used to measure the mass of a chemical sample?

9. What are the major differences between P and S waves from an earthquake and which instrument do scientists use to measure these waves?

Part 1: Universal solvent Describe what happens in each beaker.