Biol 103 Final Exam

BIOL 103 Final Exam

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Question 1 (1 point)

Which statement about evolution is FALSE?

Question 1 options:

According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. In fact, you are related to every species now alive on Earth, and to fossil species like dinosaurs as well.

Natural selection acts on genetic differences within a population to cause evolution. Individuals do not evolve.

Natural selection is about slow but steady progress. Through it, populations constantly get better-adapted. When this process is completed for all populations, evolution will come to a stop.

Evolution occurs constantly, without end; there is no endpoint in evolution.

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Question 2 (1 point)

Negatively charged particles are found where in an atom?

Question 2 options:

In the nucleus

In a single layer outside the nucleus

In multiple layers outside the nucleus

Both inside and outside the nucleus

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Question 3 (1 point)

You have a solution that has a pH of 8 and need it to be pH 5. What do you do?

Question 3 options:

Add water

Add a base

Add an acid

Add a buffer

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Question 4 (1 point)

What characteristic of carbon makes it a good backbone for creating diverse and durable molecules?

Question 4 options:

Carbon is a large atom.

Carbon forms four covalent bonds.

Carbon forms hydrogen bonds.

All of the above

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Question 5 (1 point)

Which of the following structures can be found together in eukaryotic cells?

Question 5 options:

cytoplasm and ribosomes

cytoplasm and plasma membrane

DNA and ribosomes

ribosomes and endoplasmic reticulum

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Question 6 (1 point)

Which of the following reactions or pathways is catabolic?

Question 6 options:

Breaking down ATP into ADP and phosphate.

Making starch from many glucose molecules.

Photosynthesis: which builds...