Discuss the role of amino acids in two different proteins: a. Protein A that exists as a monomer b. Protein B that forms a tetramer

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

The transport tubes for food coming down the plants are called?

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated