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Tropical rainforests have low rainfall and temperature all year round. (True / False)
false
Which of the following is NOT a freshwater ecosystem?
Pond
Lake
River
Ocean
What is the primary food source for many aquatic animals in a pond?
Water hyacinth
Tadpoles
Crabs
What does a hygrometer measure?
Air temperature
Ocean currents
Salt content
Humidity
Populations of ______ interacting with one another make up a ______.
organisms, community
An ecosystem is made up of a ______ of living organisms that interact with one another and with their ______.
community, non-living environment
Oceans are divided into two parts: the ______ and the ______.
ocean floor, open water
The ______ is the cover formed by the leaves and branches of tall trees in a forest.
canopy
There are ______ and ______ ecosystems.
There are terrestrial and aquatic ecosystems.
______ rainforests have high rainfall and temperature all year round.
Tropical
Tropical ______ are divided into ______ layers.
rainforests, several
Different types of ______ and ______ are found in the different layers of a tropical rainforest.
plants, animals
Savannas are a type of ______ that has wet and dry seasons.
grassland
As ______ are hot and very ______ very few plants grow there.
deserts, dry
ponds, lakes, rivers and streams are ______ ecosystems in which the water has a very low ______.
Ponds, lakes, rivers, and streams are freshwater ecosystems in which the water has a very low salt content.
The water in ponds and lakes is usually ______ and the water in rivers and streams is ______.
still, Fast-moving.
