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The coldest layer which protects us from meteors because they burn up in this layer.
MESOSPHERE
True or False
All living organisms are composed of two or more cells.
False
All living organisms are composed of one or more cells.
These organisms, such as fungi and bacteria, break down dead matter and recycle nutrients back into the ecosystem.
DECOMPOSERS
What powers the water cycle?
SUN
A lion and a tiger fighting over a gazelle is an example of which ecological relationship?
COMPETITION
An insect, as the first-order consumer, acquired 85.5J of energy. How much energy does the producer acquire from the sun?
855J
SPOT THE ERROR. An organism is composed of groups of organ systems.
NO ERROR
Global warming is caused primarily by?
Human Activities
Give at least 1 effect of Global Warming.
Flooding, Melting of Ice caps, drought
T/F. Ecology is a community of living organisms interacting with each other and their physical environment.
False. It should be ecosystem
Earth's surface is covered by 71% of water (___% saltwater, ___% Fresh Water in glaciers and ice caps, ___% fresh water
97%, 2%, 1%
What is the main structural difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a membrane-bound nucleus and other membrane-bound organelles, whereas prokaryotic cells do not have a nucleus; their genetic material is found in a region called the nucleoid.
A natural process of fixing nitrogen gas.
Lightning
Respiration is the exhalation of plants and is part of the water cycle. True or False.
FALSE
The term "ecology" comes from the Greek words ____ and ____ which means ______ and ______ respectively.
"oikos" and "logos" - "house/home" and "study"
How will prolonged drought affect the hydrosphere?
The water cycle will be disrupted that could lead to water shortage.
What is the function of the mitochondrion in a cell?
Its main function is to produce energy in the form of ATP through cellular respiration. This energy is used to power various cellular processes.
Wind plays an integral role in pollination and seed dispersal. Which component of ecosystem can wind be used as an example?
ABIOTIC
What geological process raises phosphate-containing rocks from beneath Earth’s surface, making phosphorus available again for weathering and entry into ecosystems?
Geological uplift
If there are 3 consumers in the food chain. The 3rd consumer is in which trophic level?
4th trophic level
Mitochondrion is called "the powerhouse of the cell" because?
It generates most of the cell's supply of energy, in the form of adenosine triphosphate (ATP) through a process called cellular respiration.
If you consume an organism that feeds directly on plants, that makes you a __________ consumer.
second-order/secondary
It is a key process in the nitrogen cycle, in which nitrogen compounds are converted into nitrogen gas.
DENITRIFICATION
Where are nitrogen-fixing bacteria commonly found?
Legumes/Leguminous plants
In the food chain: grass - goat - man - shark, the man only acquired 0.79J. Originally, how much energy is received by the grass from the sun?
79J