WorksheetsEnv. Systems 1st 9 Weeks test
Total questions: 20
Worksheet time: 18mins
Which of the following are things you should NOT do in the lab?
Select TWO answers.
Wear open toed shoes
Ask the teacher if you are unsure about some instructions
If you have long hair it should be tied back
Play around in the lab
Dispose of lab materials according to the teachers instructions
If you do not understand a direction or part of a lab procedure, you should...
figure it out as you do the lab.
try several methods until something works.
ask the teacher before continuing.
skip it and go on to the next part.
Match the microscope parts to their function...
eyepiece
the part of the microscope that you look
diaphragm
controls the amount of light that passes
stage clips
used to hold the slides in place
adjustment knobs
moves the stage up and down to bring the
What is an if....then statement that predicts the outcome of an experiment or how the Independent variable effects the dependent variable?
hypothesis
conclusion
variables
constants
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
The type of plant
The amount of sunlight
The type of music
The type of liquid
What is the purpose of a dichotomous key?
to find a common ancestor
to identify organisms
to show relationships between organisms
to show the evolution of organisms
Identify the shark in the image
Which of the following is the correct definition for a biome?
A region classified by the human built structures present
types of ecosystems with similar climates and similar communities of plants and animals.
a community of organisms interacting with their abiotic environment
a area only found in the north American (United States & Canada)
Match the biome to its description...
Desert
high temperatures and a arid climate
Marine
aquatic habitat, high salt concentration
Tundra
below freezing for most of the year
tropical rainforest
warm temps and heavy rainfall all year
Reptiles are unable to maintain their own body temperature like mammals. This is why they are called “cold-blooded” animals. This inability to adequately warm themselves would prevent reptiles from thriving in which of the following biomes?
desert
grassland
tundra
tropical rainforest
Drag and drop the Adaptation to its correct place in the table.
What is the most likely reason that fish from a freshwater biome are unable to survive when placed into a marine habitat?
They cannot see inside of saltwater
They are unable to absorb oxygen out of the water
They are not adapted to the saltwater conditions
They sink inside of the less dense solution
Based on the food web, which of the following is most likely responsible for the rabbit population trend as shown in the graph?
decrease in fox population
decrease in amount of grass
increase in number of carrots
increase in bird population
Which trophic level in an energy pyramid receives the least amount of energy?
Only a few European rabbits (Oryctolagus cuniculus) were released into the Australian wilderness in the 19th century, but they quickly became a huge ecological problem. The rabbits competed with local herbivores and caused native populations to decline along with much of the plant life. The rabbits were so successful in Australia because they-
lacked natural predators in the environment
altered their genomes to be more fit
became predators of other herbivores
were able to breed with other species
Invasive species do which of the following...
Select THREE below.
improves/increases biodiversity
cause the populations of native organisms to decrease
destroy/decrease biodiversity
increases the populations of native organisms
compete and take over the habitat of native organisms
Why are keystone species important for biodiversity?
They are the most numerous species in their ecosystems.
They provide food for all other species.
They help to maintain the structure and integrity of the ecosystem.
They have no predators, ensuring their survival.
What could be a direct consequence of removing a top predator from an ecosystem?
A decrease in the population of primary consumers.
An increase in the diversity of plant species.
An increase in the population of herbivores, leading to overgrazing.
Match the type of species to its definition
a species whose numbers are so small that it is at risk of extinction
A species that adversely (negatively) affects habitats and biodiversity
A species that normally live and thrive in a particular community
A species living outside its native distributional range
How can the removal of a keystone species affect an ecosystem?
It can increase biodiversity.
It can lead to a more stable ecosystem.
It has no significant effect.
It can cause a trophic cascade and disrupt the ecosystem balance.
