Exam 19: Lifes Origin and Early Evolution

Proteins that speed metabolic reactions might have first formed when reactants could have begun interacting inside tiny holes in rocks near deep-sea __________.

The first major divergence of life followed the origin of ____.

The archaea include which of the following?​

The "big bang" refers to​

Life probably would never have emerged on Earth if the ancient atmosphere had been the same as the present one in regard to the content of ____.

Four of the following were likely in Earth's earliest atmosphere. Which one was not?​

The ____ hypothesis states that mitochondria and chloroplasts evolved from bacteria.

Would the evidence suggest that mitochondria or chloroplasts were the first to evolve through endosymbiosis?

Figure 19.3 -The apparatus in the accompanying figure was used in the primitive Earth atmosphere simulation experiments performed by

The study of life's origins and distribution in the universe is called​

Miller's reaction chamber contained gases intended to simulate the atmosphere of the ancient Earth. Which gas was NOT included in this chamber?​

A hypothesis currently getting a lot of attention concerning the origin of biological molecules is that they originated ____.

Choose the most appropriate statement that matches each term. -He/she provided experimental evidence for endosymbiosis.

Four the following statements are true about the mitochondrion. Which statement is false?​

Choose the most appropriate statement that matches each term. -Gemmata obscuriglobus

Choose the most appropriate statement that matches each term. -biomarker

Which process is NOT associated with structures that are formed from the extensive infolding of eukaryotic membranes?​

What can RNA do that DNA cannot that makes RNA a good starting point for life?​

Choose the most appropriate statement that matches each term. -He/she studies protocell formation both in the laboratory and in the field.

Choose the most appropriate statement that matches each term. -He/she suggested that RNA may have been the first molecule to encode genetic information.