BARU
Ukuran huruf
Lembar kerjaSemester 1 Exam Practice Quiz (Lily Jacobson)
Total soal: 20
Worksheet time: 10mins
What is the charge of an electron?
Neutral
Negative
Positive
Pessimistic
What two particles attract each other in an atom that form bonds?
Neutron & Proton
Electron & Electron
Neutron & Electron
Electron & Proton
Which is a physical change?
A copper penny oxidizing when introduced to water and oxygen
Dry ice going from a straight solid to gas
The number of reactants on the _____ side of the equation must equal the number of products on the _____ side
left; right
right; left
Doesn't matter the order
The boiling point of water is 100o Fahrenheit
True
False
An _________ reaction is when it feels warm to the touch
Exothermic
Endothermic
Exoskeleton
Cellular respiration only occurs in plants
True
False
Cellular Respiration and photosynthesis are ______ for plant survival
needed
not needed
The trophic level with the least mass in an ecosystem:
Producers; level 1
Primary consumers; level 2
Secondary consumers; level 3
Tertiary consumers; level 4
In every ecosystem, the energy originally comes from the:
Ocean
Sun
Producers
Insects
The consumers supply minerals and nutrients to the producers
True
False; the decomposers
False; the producers
Oxygen and glucose make carbon dioxide and water in the process of photosynthesis
True
False
Where do heterotrophs get their energy?
Other organisms
Autotrophs
Heterotrophs
Which of the following is a reactant for cellular respiration?
Water
Energy
Carbon Dioxide
Glucose
When you eat food:
It reacts with sunlight to create glucose
The molecules are broken down and formed into different molecules to create added mass and energy
Why is the population lesser as you go higher up the trophic levels?
There is less energy transferred
They have more predators
They are herbivores
What is the niche of a vulture?
Producer
Consumer
Decomposer
Scavenger
Which of the following would be a limiting factor for the producers in a desert environment?
Soil
Minerals
Water
Sunlight
What is the relationship between a hawk and a sloth?
Parasitic (sad to watch)
Predator/prey (also sad to watch)
When a new species is introduced into an ecosystem, the population of their prey species will decrease
True
False
