True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

All of the following are kinds of chemical bonds except 1. covalent 2. hydrogen 3. ionic 4. nitrogen

Ethylene lamp is used in fleshy fruits. Give reasons?

Which statements regarding the ATP-ADP cycle are true? ATP synthesis takes place in the mitochondria of eukaryotic cells. ATP is regenerated from ADP through the process of phosphorylation.

The evolution of life on Earth is ongoing for over 4 billion years? true or false.

How many states of matter are found in water?

What is the difference between a meteor and a meteorite? A meteor has more mass A meteorite reaches Earth and has not burned up A meteorite orbits the sun and a meteor does not A meteorite glows

How does global warming affect the temperate deciduous forest

Why do mutations make such a large contribution to bacterial genetic variation?

What part of a childs brain is resposible for licking and eating reflexes?

Which human body system do you most resemble to ribosomes and why?