All life on Earth started as unicelluar, prokaryotic organisms. Which of these structures was vital for organisms to develop in order to evolve into more complex, multicellular organisms?

How are Europe and Africa moving relative to north and South America

Why are cells arrested with colchicine during meta phase when creating a karyotype

What are the differences between primary pollutants and secondary pollutants? Give examples of each.

Cytosine is a A) Purine B) Pyrimidine C) Sugar D) Protein

The solution that surrounds the ameba is a

You are operating a powerboat at night. Your red sidelight must be visible to boats approaching from which direction (s) ? head-on only head-on and both sides head-on and behind head-on and port (left)

A graduate student finds an organism in a pond and thinks it is a freshwater sponge. a postdoctoral student thinks it looks more like an aquatic fungus. how can they decide whether it is an animal or a fungus?

i need the memorize the order of the metric system but i dotn know the sentence ... im pretty sure its king henry something thats all i know can you tell me the rest

At the beginning of cellular respiration, energy is stored in the bonds of blank molecules. At the end of cellular respiration, energy is stored in the bonds of blank molecules. for each one has the options of: ATP, glucose, or oxygen

Which of the following does not contain carbon and energy iron ice cream lettuce or eggs