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Q 1/19
Score 0
A fox hunts a rabbit. When the fox captures the rabbit, he consumes it. What is the primary reason for this organism interaction?
120
nourishment
companionship
protection
reproduction
Q 2/19
Score 0
Which of the following describes a chemical property of metal?
120
reacts with acid
attracted to a magnet
conducts electricity
high melting point
19 questions
Q.
A fox hunts a rabbit. When the fox captures the rabbit, he consumes it. What is the primary reason for this organism interaction?
1
120 sec
Q.
Which of the following describes a chemical property of metal?
2
120 sec
Q.
Which of the following is a living factor in an ecosystem that could limit the size of a raccoon population?
3
120 sec
Q.
Tony pours salt into a glass of water. The salt dissolves. The substance in the glass is a(n) ____.
4
120 sec
Q.
What is the smallest particle of an element?
5
120 sec
Q.
A liquid boils at 120 degrees Celsius until it all evaporates, leaving an empty container. What is most likely true about the liquid?
6
120 sec
Q.
Look at the picture of two different substances above. Which substance is a mixture?
7
120 sec
Q.
If a solid contains some particles that melt at 50°C and other particles that melt at 110°C, what must be true about the solid?
8
120 sec
Q.
An energy pyramid of an ecosystem is shown.
Which of the following is true about this ecosystem?
9
120 sec
Q.
Individual members of a population interact with each other in several different ways. Examine the picture of wolves.
In which of the following ways are these wolves interacting?
10
120 sec
Q.
The giant panda eats only bamboo shoots. If a disease breaks out that reduces the bamboo tree population, then what will happen to the pandas?
11
120 sec
Q.
An individual with an excellent sense of smell is handed a bottle of perfume. After smelling the perfume, he reports that the perfume contains a predominant smell of roses with a faint touch of vanilla. If the perfume is made from water, rose essence, and a splash of vanilla, it is most likely
12
120 sec
Q.
What defines a mixture?
13
120 sec
Q.
Which of the following is true about a compound and its elements?
14
120 sec
Q.
In an ecosystem, there are many factors that affect how many organisms can survive there. Which of the following is one of those factors?
15
120 sec
Q.
Carrying capacity is the maximum number of individuals an environment can support for a long period of time. What might happen when a population grows larger than the carrying capacity of the land?
16
120 sec
Q.
A commercial fishing company moves into the ecosystem shown in the food web and begins to use nets to catch crustaceans. The crustaceans are taken out of the water and sold as food.
How will this most likely affect the species in this ecosystem?
17
120 sec
Q.
Rabbits are introduced into a grassland area. Which action of the rabbits would harm the buffalo that live in the grassland?
18
120 sec
Q.
The diagram represents how energy flows through ecosystems:
What would most likely occur in an ecosystem if a nearby volcano erupted and filled the sky with dust particles, which caused significantly less sunlight to reach the ecosystem over the course of a year?
