Category A
The biosphere is the earth's area that includes all living organisms: plants, animals, and _______.
Bacteria
A group of wolves hunting together is called a ________.
A. Colony
B. Herd
C. Pack
D. Troop
C. Pack
Herbivores, such as deer and squirrels, feed on plants. What are they called in the food chain?
A. Producers
B. Secondary consumers
C. Decomposers
D. Primary consumers
D. Primary consumers
All of these levels, from producer to tertiary consumer, form what is known as a ______?
A. Energy pyramid
B. Food chain
C. Food web
D. Ecosystem
B. Food Chain
What is the scientific name of the Philippine Eagle?
A. Bubalus mindorensis
B. Pithecophaga jefferyi
C. Carlito syrichta
D. Varanus salvator
B. Pithecophaga jefferyi
The outer portion of the Earth (the lithosphere) and the lower region of the atmosphere constitute the biosphere. What is this lower region of the atmosphere called?
A. Stratosphere
B. Troposphere
C. Mesosphere
D. Thermosphere
B. Troposphere
A group of fish swimming together is called a ________.
A. Flock
B. Herd
C. School
D. Pack
C. School
Which among the following is NOT an omnivore?
Bears
Rats
Humans
Chickens
Pigs
Cow
Cow
In a grassland, green grass grows in the open field. A grasshopper feeds on the grass. Later, a frog eats the grasshopper, and then a snake eats the frog.
Question:
In this food chain, what is the role of the frog?
A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer
C. Secondary consumer
What is the scientific name of Coconut?
A. Cocos dactylifera
B. Cocos nucifera
C. Cocos catechu
D. Cocos guineensis
B. Cocos nucifera
“Bio” means life, and in the 1920s, a Russian scientist first coined the word biosphere. Who was this scientist?
A. Vladimir Lenin
B. Vladimir Putin
C. Vladimir Vernadsky
D. Vladimir Nabokov
C. Vladimir Vernadsky
Organisms that can produce their own food through processes like photosynthesis or chemosynthesis are called ________.
A. Heterotrophs
B. Decomposers
C. Parasites
D. Autotrophs
D. Autotrophs
Organisms that feed on dead organisms are called scavengers. Among the following — whale, vulture, hyena, crow, shrimp, and squid — which one is NOT a scavenger?
Whale
The main types of biomes are aquatic, desert, forest, grassland, and Savanna. Is including Savanna in this list correct?
No
Which cycle does not have an atmospheric component?
A. Carbon cycle
B. Nitrogen cycle
C. Phosphorus cycle
D. Water cycle
C. Phosphorus cycle
On the scale of the entire world, the biosphere is extremely thin compared to Earth’s size. It is often compared to the thickness of what?
A. The skin of a banana
B. The peel of an orange
C. The rind of a watermelon
D. The skin of an apple
D. The skin of an apple
A/An ________ is a community of living organisms interacting with each other and their environment.
Ecosystem
Plants use the process of ________ to manufacture sugar (glucose) from carbon dioxide and water.
Photosynthesis
Boreal forests are located in higher latitudes, such as Siberia, where they are also called ______.
Which process converts ammonia (NH₃) into nitrites (NO₂⁻) and then nitrates (NO₃⁻)?
A. Nitrogen gas fixation
B. Nitrification
C. Ammonification
D. Nitrogen fixation
B. Nitrification
The word ecology comes from the Greek terms ________, which literally mean "study of the home."
A. Oikos and legos
B. Oikos and logus
C. Oikos and logos
D. Oikos and locus
C. Oikos and logos
The levels of ecology are arranged in sequence as follows: Organism → Population → ________ → Ecosystem → Biome → Biosphere.
Community
Autotrophs that make their own food are known as _____, while heterotrophs that eat other organisms, living or dead, are known as _______.
Producers and Consumers
Food Web (Forest Ecosystem)
Grass & shrubs → eaten by deer, rabbits, grasshoppers
Grasshoppers → eaten by frogs, birds
Rabbits & deer → eaten by wolves, tigers
Frogs → eaten by snakes
Snakes & birds → eaten by eagles
All animals → when they die, decomposers (fungi, bacteria) recycle nutrients back into the soil
If snakes were removed from the ecosystem, what might happen to frogs and eagles?
Frogs would likely increase in number because their predator (snakes) is gone.
Eagles would have less food available, since snakes are part of their diet, which could cause their population to decrease.