Energy Ecosystems

Question 1

What happens when herbivores lose their food sources, like when plants are removed for human development?

Accepted Answer

Herbivore populations can decline because they cannot find enough food

Question 2

Which of the following animals is known to primarily eat bones rather than meat?

Accepted Answer

Lammergeiers (bearded vultures)

Question 3

What is the role of detritivores in an ecosystem?

Accepted Answer

Break down dead organic material& recycle nutrients back into the ecosystem

Question 4

Which of the following is true about organisms that perform chemosynthesis?

Accepted Answer

They produce food by combining hydrogen sulfide or methane with oxygen.

Question 5

What is the role of detritivores in an ecosystem?

Accepted Answer

They feed on the remains of plants, animals & fecal matter, recycling waste

Question 6

Omnivores can only eat plants and do not consume animal products.

Accepted Answer

False

Question 7

What is one adaptation of vultures that helps them as scavengers?

Accepted Answer

They have excellent eyesight and a strong sense of smell to locate carrion

Question 8

Which of the following animals adapted to life near a developed area by scavenging food from a town dump?

Accepted Answer

Polar Bears

Question 9

What is the likely consequence of a decrease in the number of autotrophs in an ecosystem?

Accepted Answer

A decrease in the number of carnivores

Question 10

What is an example of a sea creature that consumes carrion?

Accepted Answer

Eels

Question 11

What is the primary role of decomposers in an ecosystem?

Accepted Answer

They break down organic wastes into inorganic materials, enriching the soil

Question 12

Detritivores only consume dead plant material and cannot break down decaying animals or fungi.

Accepted Answer

False

Question 13

What role do shell-building organisms play in the slow carbon cycle?

Accepted Answer

They combine calcium ions with bicarbonate to form calcium carbonate

Question 14

How does volcanic activity contribute to the slow carbon cycle?

Accepted Answer

It releases carbon dioxide into the atmosphere by melting carbon-rich rock.

Question 15

Vultures are scavengers because they have strong talons and beaks to overpower their prey.

Accepted Answer

False

Question 16

Most carnivores, including mammals, do not have strong jaws, sharp teeth, or claws to help them hunt and capture prey

Accepted Answer

False

Question 17

All carnivores are hunters and never scavenge for food.

Accepted Answer

False

Question 18

What is the role of producers (autotrophs) in a food chain?

Accepted Answer

They make their own food using sunlight, carbon dioxide, and water.

Question 19

What is one major consequence of biodiversity loss?

Accepted Answer

Reduced availability of essential resources like food and medicine

Question 20

All obligate carnivores are hypercarnivores because they depend on animals for at least 70% of their diet.

Accepted Answer

True

Question 21

Which of the following organisms is an example of an autotroph?

Accepted Answer

A plant that uses sunlight, water, and carbon dioxide to make food

Question 22

Which of the following organisms are considered to be part of the third trophic level?

Accepted Answer

Carnivores

Question 23

What is a key difference between autotrophs and heterotrophs?

Accepted Answer

Autos. use photos. to create food, while hets. must consume other organisms

Question 24

Why is carbon essential for life on Earth?

Accepted Answer

Creates strong bonds w' other elements, forming complex organic molecules.

Question 25

Carnivores, such as lions, have adaptations like sharp claws &curved beaks that help them hunt and tear apart their prey

Accepted Answer

True

Question 26

What is an example of a tertiary consumer in a food chain?

Accepted Answer

A lion that eats zebras

Question 27

What is a food web?

Accepted Answer

The interconnected and overlapping food chains in an ecosystem

Question 28

What does the decreasing width of each step in an energy pyramid represent?

Accepted Answer

Loss of energy that can't be consumed by organisms at higher trophic levels

Question 29

Which of the following organisms would be classified as a primary consumer?

Accepted Answer

An elephant that feeds on plants

Question 30

What distinguishes scavengers from other carnivores in a food web?

Accepted Answer

Scavengers eat animals that have died of natural causes or been killed.

Question 31

Cannibals are carnivores that eat the meat of other species, but they do not consume members of their own species.

Accepted Answer

False

Question 32

Which of the following organisms would be classified as a primary consumer in a food chain?

Accepted Answer

A herbivore that eats plants

Question 33

Which of the following is an example of a food chain in a grassland ecosystem?

Accepted Answer

Grass → Grasshopper → Rat → Snake → Hawk

Question 34

Which natural area stores the most carbon compared to its size?

Accepted Answer

Peatlands

Question 35

What does "the 10 percent rule" in ecosystems refer to?

Accepted Answer

10% of the energy stored as biomass in 1 level is passed to the next level

Question 36

What is the primary function of the specialized stomachs of ruminants?

Accepted Answer

To break down plant material by regurgitating and chewing it multiple times

Question 37

Which of the following is an example of a heterotroph

Accepted Answer

A dog that eats other animals for energy

Question 38

Which of the following animals is more likely to scavenge during the winter when other food is scarce?

Accepted Answer

Foxes

Question 39

Obligate carnivores, such as cats, rely exclusively on meat for survival and cannot properly digest plants.

Accepted Answer

True

Question 40

Which of the following best describes net primary productivity?

Accepted Answer

Energy remaining after respiration that is available to primary consumers.

Question 41

Some carnivores, like the Venus flytrap, are plants & fungi that capture and consume prey

Accepted Answer

True

Energy Ecosystems

Questions 41

Energy Ecosystems

Questions 41