We're so confident of our products that we provide no hassle product exchange.
WGU Introduction to Biology (KBC1, C190) Sample Questions:
1. A primary consumer (e.g., an insect) derives energy from which level of the food chain?
A) Secondary consumer
B) Primary consumer
C) Producers
D) Carnivore
2. What is a primary characteristic ofperipheral membrane proteins?
A) They cannot be post-translationally modified.
B) Weak intermolecular forces keep them attached to the lipid membrane.
C) They span the entire lipid bilayer, sometimes multiple times.
D) Detergents or nonpolar solvents are necessary to remove them from the membrane.
3. Ocean acidification dissolves calcium-based exoskeletons of purple sea urchins. Some individuals have a trait making their exterior more acid-resistant. If acidification increases, how is this population most likely to evolve?
A) Shorter, more flexible spines become more common
B) Acid-resistant exoskeletons become more common
C) Less acid-resistant exoskeletons become more common
D) Longer, more rigid spines become more common
4. Which statement correctly describes how anionic bondforms?
A) Two ions share several pairs of electrons
B) An electron is transferred from one atom to another
C) Two atomic nuclei fuse to form a single molecule
D) Two atoms are attracted to a nearby hydrogen atom that binds them together
5. Rabbit populations rise and fall over 8-10 years; wolf populations in the same area follow with a ~2-year lag.
What is the relationship between wolves and rabbits?
A) Predator-prey
B) Symbiosis
C) Mutualism
D) Competition
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: A |
By Beryl
