Two enzymes catalyze the same reaction. enzyme a converts substrate to product twice as fast as enzyme b. which enzyme has the lower activation energy or energy barrier: a or b?

The questions below will determine which restriction enzyme should be used to make a plasmid that contains both an intact vgp gene and a functional ampr gene. answer questions 1–4 by selecting from the answer choices on the left. drag the correct answer to the right of each question.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Explain how the political influence of african americans leaders became weaker.