Could life as we know it exist on earth if air contained only oxygen

What type of reaction is 2Mg + 2HCL > 2MgCl + H2 + heat?

If a DNA double helix is gradually heated, which bonds in the molecule will break first?

Which type of wave cannot move without a medium in which to travel?

List renewal energy sources.

When is facilitated diffusion necessary?

Which carbohydrate source is found in small concentrations in tsi media, allowing the investigator to differentiate between organisms that can only ferment this monosaccharide and those that are able to ferment other available carbohydrate sources?

You are a geneticist trying to develop a sunflower with red flowers and a short stem. as you compare the sunflowers you have, what genetic variations would you look for? what kinds of plants would you select for crossing?

How are Amino acids linked to become proteins?

1. Explain what is the "Sea Floor Spread" with examples. 2. Explain "Continental Slide" with your own example. 3. How do you explain Transform Boundary after going through the "Slippin' and a Slidin' ".

Differences between prokaryotic and eukaryotic promoters?