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- Multiple ChoicePlease save your changes before editing any questions.
The adaptation that plants and animals have and help them to survive in their environment are
Structural adaptation
Behavioral adaptation
Psychological adaptation
- Multiple ChoicePlease save your changes before editing any questions.
The ability for an animal to feed mostly at night is an example of...
Structural adaptation
Physiological adaptation
Behavioral adaptation
- Multiple ChoicePlease save your changes before editing any questions.
Having a smooth and streamlined body to help move easily under water is the type of
Structural adaptation
Behavioral adaptation
Physiology adaptation
- Multiple ChoicePlease save your changes before editing any questions.
The following are the list of steps when carrying out an ecological investigation, using a quadrat:
Calculate/estimate the population of the given species using your results. Repeat placing the quadrat in other randomly selected places counting the species number each time. Calculate/estimate the area of land under study. Count the number of a given species in the quadrat. Randomly decide where to place the quadrat. Measure the area of the quadrat.
The correct step order is ...
1-2-3-4-5-6
6-5-4-2-1-3
6-5-4-3-2-1
6-5-4-2-3-1
- Multiple ChoicePlease save your changes before editing any questions.
One correct way to estimate the number of a particular species from a quadrat study is
area of quadrat / area of land x average number of particular species in one quadrat
average number of particular species in one quadrat / area of land x area of quadrat
area of land / area of quadrat x average number of particular species in one quadrat
area of quadrat / average number of particular species in one quadrat
- Multiple ChoicePlease save your changes before editing any questions.
The direction of the arrows in a food web point away from the
primary consumer to top consumer
producer to top consumer
top consumer to primary consumer
top consumer to producer
- Multiple ChoicePlease save your changes before editing any questions.
A primary consumer is always a ...
carnivore
plant
herbivore
- Multiple ChoicePlease save your changes before editing any questions.
What all dead organism and the waste material produced by living organism contain?
bacteria
enzymes
decomposer
organic matter
- Multiple ChoicePlease save your changes before editing any questions.
What are decomposers?
Organisms that get their energy by breaking down dead organism or their waste product
dead bodies and organic waste
organisms that use energy to break down dead bodies and organic waste
- Multiple ChoicePlease save your changes before editing any questions.
The list are decomposer, except ....
Earthworm
Fungi
Bacteria
Snail
- Multiple ChoicePlease save your changes before editing any questions.
What do decomposers produce that help with digestion?
faeces
teeth
waste material
enzymes
- Multiple ChoicePlease save your changes before editing any questions.
Enzymes are necessary in digestion as they ...
produce larger molecules from smaller molecules
move food through the digestive system
break down larger molecules into smaller molecules
prevent us from bacteria
- Multiple ChoicePlease save your changes before editing any questions.
Select all the apply decomposers
are organisms that get their food from dead organisms and organic waste
are organic waste material and dead organisms
help to recycle substances from dead organisms and waste, so that other living organisms can use them
include maggots, fungi, worms, fruit flies
- Multiple ChoicePlease save your changes before editing any questions.
Under what circumstances do populations increase?
When the number of births is less than the number of deaths
When the number of births is greater than the number of deaths
When the number of births is equal to the number of deaths
- Multiple ChoicePlease save your changes before editing any questions.
What is population?
all the people living in the same area at the same time
all the organisms of one species living in the same area over time
all the organisms of all species living in the same area at the same time
all the organisms of one species living in the same area at the same time
- Multiple ChoicePlease save your changes before editing any questions.
Select all that apply:
the factors that could be responsible for animal population growth.
an increase in predator numbers
a decrease in predator numbers
an increase in the food supply
a decrease in the food supply
disease
- Multiple ChoicePlease save your changes before editing any questions.
Select all that apply:
the factors that could be responsible for plant population size.
the amount of available water
the amount of light
the amount of oxygen present
the amount of grazing herbivores
the number of decomposers available
- Multiple ChoicePlease save your changes before editing any questions.
What is pollution?
material that cannot decompose
harmful substances that exist in our environment
what occurs when the number of decomposers were to decrease
the addition of harmful substances to the environment
- Multiple ChoicePlease save your changes before editing any questions.
An alga bloom on a lake surface is caused by
the addition of extra plants and algae to the lake
a lack of oxygen in the lake water
the addition of extra fertilizer to the lake, causing plants and algae to grow
dead and decaying fish and other organic matter in the lake
- Multiple ChoicePlease save your changes before editing any questions.
Select all that apply:
pollution affects food webs
removing one (or more) links in a food web
possibly adding a poison into the food web
always increasing the number of consumers, therefore decreasing the number of producers
changing the habitat of the ecosystem, therefore affecting food chains
always increasing the number of producers, and decreasing the number of consumers
- Multiple ChoicePlease save your changes before editing any questions.
The following are the effects of fertilizer pollution in water:
- Plants die
- Death of fish
- Increased growth of water plants and algae
- Fertilizer added to lake
- Increase in decomposers
The order of the process in turning a healthy lake to an unhealthy lake would be ...
1 - 2 - 3 - 4 - 5
4 - 2 - 3 - 1 - 5
4 - 3 - 5 - 1 - 2
2 - 3 - 4 - 1 - 5
4 - 3 - 1 - 5 - 2
- Multiple ChoicePlease save your changes before editing any questions.
How do algal blooms affect a lake ecosystem by ...
directly preventing oxygen reaching underwater plants
adding extra fertilizer to the lake
producing toxins that could poison fish and other aquatic creatures
preventing sunlight getting deep into the lake
increasing the number of decomposers, which use up most of the dissolved oxygen in the water
- Multiple ChoicePlease save your changes before editing any questions.
A food chain is a diagram that shows ...
the realistic feeding relationships between all organisms in a community
the transfer of energy from one organism to another
how a particular food type is produced
how all the fast food restaurants in a food court belong to one owner
- Multiple ChoicePlease save your changes before editing any questions.
A food web is a diagram that shows ...
the realistic feeding relationships between all organisms in a community
the transfer of energy from one organism to another
how a particular food type is produced
how all the fast food restaurants in a food court belong to one owner
- Multiple ChoicePlease save your changes before editing any questions.
The plants and animals that co-exist together in a particular area, collectively are known as a
habitat
ecosystem
community
niche