Question 1

What is the main source of energy for the energy pyramid?

Accepted Answer

The sun

Answer

The Earth's core

Answer

Wind energy

Answer

Geothermal heat

Question 2

What role do decomposers play in the energy pyramid?

Accepted Answer

They recycle nutrients back into the ecosystem.

Answer

They primarily eat primary consumers.

Answer

They produce energy for the pyramid.

Answer

They compete with producers for sunlight.

Question 3

What role do herbivores play in a food web?

Accepted Answer

They act as primary consumers that eat plants and transfer energy to higher trophic levels.

Answer

They produce energy through photosynthesis

Answer

They are the top predators in the ecosystem

Answer

They only feed on decomposed matter

Question 4

Which of the following might indicate an imbalance in a food web?

Accepted Answer

A sudden decline in the population of a primary producer

Answer

Consistent reproduction rates among all species

Answer

A stable population of top predators

Answer

Increased competition among primary consumers

Question 5

What is the primary source of energy for most ecosystems?

Accepted Answer

The Sun

Answer

Geothermal energy

Answer

Nuclear energy

Answer

Wind energy

Question 6

What type of symbiotic relationship is observed between bees and flowering plants?

Accepted Answer

Mutualism

Answer

Commensalism

Answer

Predation

Answer

Parasitism

Question 7

Which of the following is a classic example of parasitism?

Accepted Answer

Tapeworms in the intestines of humans

Answer

Birds nesting in trees

Answer

Remora fish attached to sharks

Answer

Nitrogen-fixing bacteria in root nodules of legumes

Question 8

Which of the following is an example of commensalism in symbiosis?

Accepted Answer

Barnacles on whales

Answer

Oxpeckers feeding on ticks from rhinoceroses

Answer

Bees pollinating flowers

Answer

Clownfish living in sea anemones

Question 9

Which of the following is an example of mutualism in symbiosis?

Accepted Answer

Clownfish and sea anemones

Answer

Tapeworms and humans

Answer

Cattle egrets and cattle

Answer

Mistletoe and trees

Question 10

What is the process by which certain traits become more or less common in a population due to consistent environmental pressures?

Accepted Answer

natural selection

Answer

artificial selection

Answer

mutation

Answer

genetic drift

Question 11

What is the term for the process through which genetic material is exchanged between populations, contributing to genetic variation?

Accepted Answer

gene flow

Answer

mutation

Answer

natural selection

Answer

genetic drift

Question 12

Which scientific evidence supports the theory of evolution by showing the changing forms of organisms in the fossil record?

Accepted Answer

transitional fossils

Answer

biogeographical patterns

Answer

genetic sequences

Answer

homologous structures

Question 13

What is the term for structures or behaviors that have lost their original function through the course of evolution?

Accepted Answer

vestigial structures

Answer

adaptive traits

Answer

functional adaptations

Answer

exaptation

Question 14

What term describes a feature that is inherited from a common ancestor?

Accepted Answer

homologous structure

Answer

vestigial structure

Answer

convergent feature

Answer

analogous structure

Question 15

Which scientist is most famously associated with the theory of evolution by natural selection?

Accepted Answer

Charles Darwin

Answer

Isaac Newton

Answer

Gregor Mendel

Answer

Albert Einstein

Question 16

Which of the following scenarios best illustrates genetic drift?

Accepted Answer

A small group of animals is isolated from the main population and experiences different allele frequencies over generations

Answer

Migration introduces new alleles to a population

Answer

A predator favors the survival of a specific color in a population

Answer

A new species evolves from a common ancestor

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