Unit 1 L1-4
TRUE or FALSE: A niche is the place that an organism lives.
FALSE.
Which are there more of in an ecosystem, predators or prey?
Prey.
TRUE or FALSE: There are more Canadian wildfires in recent years than in past years.
TRUE.
TRUE or FALSE: Thermal energy is another word for temperature.
FALSE.
What will be the output of the following code?
colors = ["red", "blue", "green"]
print(colors[1])
blue.
Radiant energy comes from what?
The sun.
What is a symbiotic relationship where one organism benefits and the other is harmed?
Parasitism.
Massive slabs of slowly moving rock, often bigger than a continent.
Tectonic plates.
The atomic number of an element is determined by the amount of what?
Protons.
What is a collection of items stored in a single variable?
A list.
Photosynthesis takes place in the...?
Chloroplasts.
A grizzly bear and a river otter both hunt salmon in the same river. What type of relationship is this?
Competition.
What is the layer of Earth directly below the crust?
The mantle.
How many total atoms are in the following formula?
3H₂0
9.
What will be the output of the following code?
numbers = [2, 4, 6, 8]
numbers.append(10)
print(len(numbers))
5.
Name one of the three main types of ecosystems.
Terrestrial, aquatic marine, aquatic freshwater.
About what percent of energy is transferred between each trophic level?
10%
What is it called when two oceanic plates collide and one goes under the other?
Subduction.
Which type of mixture has the same composition throughout, and appears as a single thing?
Homogenous mixture.
Below are the contents of a file named ‘grocery_list.txt’, with 4 lines of data:
1 Bread
2 Eggs
3 Milk
4 Cookies
How many lines of data will there be in grocery_list.txt after the following lines of code are run?
file = open("grocery_list.txt", "w")
file.write("\n5 Yogurt")
file.write("\n6 Tomatoes")
file.close()
2.
Which word describes members of the same species competing?
Intraspecific competition.
What is it called when a body of water gets enriched by nutrients?
Eutrophication.
What is made up of the crust and the upper mantle?
The lithosphere.
A solid that emerges from a liquid during a chemical reaction is called what?
A precipitate.
How many times will "hi" be printed?
widths = [200, 100, 50, 25]
widths.pop()
for width in widths:
for i in range(4):
print("hi")
12.