Bio 182 Chapter 45| Questions And Answers|
Verified By Expert| Frequently Tested|
Graded A+.
At what levels of life are focused on while studying ecology?
ANSWER ✔✔ Interactions between organisms and their environment.
What is the difference between a biotic and abiotic factor in the environment?
ANSWER ✔✔ Biotic refers to interactions among living things, while abiotic refers to
interactions between organisms and their nonliving environment.
What is a biome? And what are they characterized by in both aquatic (water) and
terrestrial (land) areas?
ANSWER ✔✔ A biome is a major aquatic or terrestrial life zone. Aquatic biomes are
characterized by their physical environment, while terrestrial biomes are characterized by their
vegetation type.
There are two major classes of aquatic biomes that are divided based on their salt content.
What are they?
ANSWER ✔✔ Freshwater and marine biomes.
What % of earth does freshwater cover?
ANSWER ✔✔ 3%
Unlike lakes and ponds which are standing water, rivers and streams are flowing water. Be
able to explain some of the differences in properties that occur near the source of the
stream vs. downstream.
ANSWER ✔✔ Near the source: clear, cold, swift, and low in nutrients.
Downstream: murkier, warmer, slower, and higher in nutrients.
Verified By Expert| Frequently Tested|
Graded A+.
At what levels of life are focused on while studying ecology?
ANSWER ✔✔ Interactions between organisms and their environment.
What is the difference between a biotic and abiotic factor in the environment?
ANSWER ✔✔ Biotic refers to interactions among living things, while abiotic refers to
interactions between organisms and their nonliving environment.
What is a biome? And what are they characterized by in both aquatic (water) and
terrestrial (land) areas?
ANSWER ✔✔ A biome is a major aquatic or terrestrial life zone. Aquatic biomes are
characterized by their physical environment, while terrestrial biomes are characterized by their
vegetation type.
There are two major classes of aquatic biomes that are divided based on their salt content.
What are they?
ANSWER ✔✔ Freshwater and marine biomes.
What % of earth does freshwater cover?
ANSWER ✔✔ 3%
Unlike lakes and ponds which are standing water, rivers and streams are flowing water. Be
able to explain some of the differences in properties that occur near the source of the
stream vs. downstream.
ANSWER ✔✔ Near the source: clear, cold, swift, and low in nutrients.
Downstream: murkier, warmer, slower, and higher in nutrients.
