Which of the following best describes biomagnification?

The increase in pollutant concentration as you move up the food chain

What is a poikilotherm?

Allow body temperature to fluctuate

The energy left after plants use some for their own growth and survival

The total amount of energy plants produce.

In a food chain, what happens if all primary producers are removed?

The entire ecosystem will collapse

In a food web, what happens if one species is removed?

The food web becomes unbalanced, affecting other species

What is an ocean gyre?

a giant-scale body of surface water that slowly rotates

What is bioaccumulation?

pollutants build up in the tissues of an organism over time

What is Primary Productivity?

The rate at which plants produce organic material

How do you calculate NPP (Net Primary Productivity)

GPP - Respiration by Primary Producers

What would happen if NPP is higher than GPP in an ecosystem?

It suggests more energy is being used for plant respiration than growth

What is the role of decomposers in the energy flow of an ecosystem?

recycle nutrients back into the ecosystem

What is NEE (Net Ecosystem Exchange)?

The net carbon exchange between an ecosystem and the atmosphere

What do both food webs and food chains have in common?

They both show the flow of energy through an ecosystem

Which statement is true about a food web?

It shows multiple interlinked food chains

What is a trophic level in a food chain or web?

The position an organism occupies in the food chain or web

Which of the following is true about endotherms?

maintain a stable body temperature through internal processes.

What is the main characteristic of El Niño?

Warmer-than-normal ocean temperatures

What are the 4 mechanisms of heat exchange

Conduction, convection, radiation, evaporation

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Ecology Midterm Fun

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Questions 41

Answers

1
Which of the following best describes biomagnification?
The increase in biodiversity at higher trophic levels
The increase in pollutant concentration as you move up the food chain
The breakdown of pollutants in the environment
The accumulation of toxins in an organism’s body at each trophic level
2
What does NEE stand for?
Net Ecosystem Exchange
Net Energy Evolved
Net Evolution Energy
Normal Ecology Energy
3
In which mechanism of heat exchange does heat travel through air or water currents?
Conduction
Convection
Condensation
Radiation
4
What does GPP stand for in ecology?
General Photosynthesis Process
Gross Primary Productivity
Global Primary Production
Growth Production Potential
5
What is a poikilotherm?
keep body temp constant
produce their own heat
Allow body temperature to fluctuate
rely on heat from env.
6
What is NPP?
The total amount of energy plants produce.
The energy left after plants use some for their own growth and survival
GPP stands for Grand Pizza Party
a mysterious event where plants are secretly polled about their growth
7
What is GPP?
GPP stands for Grand Pizza Party
The energy left after plants use some for their own growth and survival
a mysterious event where plants are secretly polled about their growth
The total amount of energy plants produce.
8
In a food chain, what happens if all primary producers are removed?
Only herbivores will survive
Tertiary consumers will eat more primary consumers
The entire ecosystem will collapse
Secondary consumers will thrive
9
What is the study of how living things interact with each other and their environment?
Physics
Chemistry
Ecology
Biology
10
What happens to energy as it moves up the trophic levels in an ecosystem?
decreases due to heat loss
Stays the same
changes into new forms
increases
11
In a food web, what happens if one species is removed?
It has no effect on the ecosystem
Only primary consumers are affected
The food web becomes unbalanced, affecting other species
Only tertiary consumers are affected
12
What is an ocean gyre?
a giant-scale body of surface water that slowly rotates
A tidal wave caused by earthquakes
A type of marine animal migration
A deep underwater volcano
13
Which term describes animals that regulate their body temperature primarily through external sources, like the sun?
Homeotherm
Poikilotherm
Endotherm
Ectotherm
14
Which ecosystem has the highest net primary productivity (NPP)?
Desert
Tundra
Tropical Rainforest
Open Ocean
15
Which process involves heat transfer through direct contact
Convection
Absorption
Radiation
Conduction
16
What does ENSO stand for?
El Niño-Southern Oscillation
Equatorial Natural Storms Oscillation
Environmental Natural System Operations
El Niño and Southern Ocean
17
What is bioaccumulation?
movement of toxins through the food web
pollutants increase in concentration across trophic levels
pollutants build up in the tissues of an organism over time
decrease in pollutant levels in an organism over time
18
What is Primary Productivity?
The process of decomposition
The total biomass of herbivores
The rate at which plants produce organic material
The amount of energy lost in a food web
19
How do you calculate NPP (Net Primary Productivity)
GPP - Decomposition
GPP + Respiration by Consumers
GPP + Soil Fertility
GPP - Respiration by Primary Producers
20
What would happen if NPP is higher than GPP in an ecosystem?
It is impossible since NPP is always less than GPP
It suggests an error in measurement
It suggests more energy is being used for plant respiration than growth
It indicates more energy is available for herbivores
21
What is the role of decomposers in the energy flow of an ecosystem?
recycle nutrients back into the ecosystem
convert solar energy into chemical energy
consumer primary producers
produce oxygen for other organisms
22
What is NEE (Net Ecosystem Exchange)?
The carbon absorbed by plants only
The total carbon captured by producers in an ecosystem
The total carbon released by consumers
The net carbon exchange between an ecosystem and the atmosphere
23
What do both food webs and food chains have in common?
They both only show the relationships between plants and herbivores
They both show the flow of energy through an ecosystem
They both exclude decomposers
They both only include producers
24
Which statement is true about a food web?
It shows multiple interlinked food chains
It is a simplified version of a food chain
It only includes herbivores and carnivores
It only shows one species of each trophic level
25
What is a trophic level in a food chain or web?
The level of an organism's health
The rate at which energy is passed between organisms
The position an organism occupies in the food chain or web
he number of species in an ecosystem
26
What happens during La Niña?
No major weather changes occu
Global temperatures rise significantly
The Pacific Ocean warms up
The Pacific Ocean cools down
27
What percentage of energy is typically passed from one trophic level to the next in an ecosystem?
10%
15%
5%
20%
28
Which describes animals whose body temperature remains relatively constant, regardless of external conditions?
Ectotherm
Endotherm
Poikilotherm
Homeotherm
29
Which of the following is true about endotherms?
cold-blooded animals.
body temperature fluctuates with the environment.
maintain a stable body temperature through internal processes.
rely on external heat sources to regulate their body temperature.
30
What is an an Example of an Abiotic Factor?
Fish
Trees
Sunlight
Fungi
31
Which of the following is an example of a secondary consumer in a food chain?
Wolf
Grass
Rabbit
Deer
32
What is the primary mechanism of heat exchange when you are sitting next to a campfire?
Evaporation
Radiation
Convection
Conduction
33
Which two phases are part of ENSO?
Tsunami and Hurricane
Warm Phase and Cold Phase
Tropical Storms and Droughts
El Niño and La Niña
34
What is the main characteristic of El Niño?
Strong upwelling of cold water
Warmer-than-normal ocean temperatures
Increased hurricane activity in the Atlantic
Cooler-than-normal ocean temperatures
35
What is an Example of a Biotic Factor?
Water
Rocks
Temperature
Bacteria
36
Which way do Gyres rotate in northern hemisphere?
no rotation
directly
clockwise
counterclockwise
37
Which way do Gyres rotate in southern hemisphere?
clockwise
no rotation
counterclockwise
directly
38
If an ecosystem has a GPP of 8000 units and the respiration by primary producers is 3000 units, what is the NPP?
2000
3000
5000
11000
39
Which organisms are at the first trophic level?
Herbivores
Consumer
Producers
Decomposers
40
What is the primary source of energy in most ecosystems?
Water
Plants
Sun
Soil
41
What are the 4 mechanisms of heat exchange
Conduction, Reflection, Radiation, and Sublimation
Conduction, Convection, Radiation, and Absorption
Conduction, convection, radiation, evaporation
Conduction, Convection, Evaporation, and Condensation

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