Biotic v. Abiotic
Food Webs
Cell Theory
Characteristics of Organisms
Variations in Populations
100
Sea anemones and clown fish live together in the ocean. Which statement best describes one way sea anemones depend on clown fish for an ABIOTIC factor in an ecosystem?
A) Clown fish protect sea anemones from predatory fish
B) Clown fish decrease competition among sea anemones
C) Clown fish consume the remains of organisms paralyzed by sea anemones
D) Clown fish move water near sea anemones when dissolved oxygen levels are low.
D) Clown fish move water near sea anemones when dissolved oxygen levels are low.
BECAUSE
water is the only ABIOTIC factor listed
100
True or False
In a food web, removing one species can affect the entire ecosystem.
True
100
True or False
All cells come from spontaneous generation.
False
100
What is the key characterisitic of eukaryotic cells?
They have a nucleus
100
Which situation best demonstrates how a variation becomes more common in a population over time?
A) A new trait appears in one generation and spreads immediately.
B) Individuals with a helpful trait survive and reproduce more, passing it on.
C) All traits are passed equally, regardless of usefulness.
D) Organisms choose their traits based on the environment.
B) Individuals with a helpful trait survive and reproduce more, passing it on.
200
Students are investigating the characteristics of different plants. They record the characteristics in the table below. 
Which plant would best compete for sunlight in a rain forest environment and why?
Plant 2, it is able to grow above other plants to get sunlight
200
What is the difference between a producer, consumer and decomposer?
producer= Makes its own food through photosynthesis
consumer= Eats other organisms for energy
decomposer= Breaks down dead organisms
200
Which statement best describes cell theory?
A) Cells are part of complex organims that work together to produce new cells.
B) Cells perform a single life function and most cells come from existing cells.
C) Cells use energy from food to be able to perform life functions and work together to produce new cells.
D) Cells are the basic unit of structure for all organisms, and all cells come from existing cells.
D) Cells are the basic unit of structure for all organisms, and all cells come from existing cells.
200
Organisms that make their own food using sunlight or chemicals are called __________.
autotrophs
200
Which of the following best explains why variation within a population is important for survival?
A) It allows individuals to grow larger.
B) It helps every individual survive equally.
C) It increases the chances that some individuals will survive changes in the environment.
D) It ensures that predators are always avoided.
C) It increases the chances that some individuals will survive changes in the environment.
300
Two plant species that grow in the same area are shown.
Which plant obtains more water and why?
Plant 1 obtains more water from the soil because of its root surface area and depth.
300
A forest food web is shown.
What would most likely cause a DECREASE in the frog population?
Increase in the snake population
OR
Decrease in the dragonfly population
OR
Decrease in the butterfly population
300
The __________ is the basic unit of structure and function in all living organisms.
Cell
300
Which group of organisms includes only prokaryotes?
A) Plants
B) Protists
C) Fungi
D) Bacteria
D) Bacteria
300
A __________ is a difference in a trait or behavior among individuals in the same species.
variation
400
Immediately after a forect fire, the consumers in the area will compete most for which biotic factor?
Food
400
A food web is shown.
Based on the food web, which types of organisms would the grasshopper mouse most likely compete with for food sources?
CHOOSE TWO=Producers, Decomposers, Herbivores or Carnivores
Herbivores and Carnivores
400
A scientist observes an unknown organism under a microscope and sees it is made of a single cell. Based on cell theory, what can the scientist conclude?
A) The organism is not alive
B) The organism will develop organs
C) The organism can carry out all life processes
D) The organism cannot reproduce
C) The organism can carry out all life processes
400
Classify Bacteria as
prokaryotic or eukaryotic
unicellular or multicellular
autotroph or heterotroph
prokayotic, unicellular, both
400
In a population of rabbits, some have white fur and others have brown fur. The area they live in becomes snowy most of the year. What is most likely to happen over time?
A) The population will go extinct.
B) The white rabbits may survive more often because they blend in better.
C) The brown rabbits will become predators.
D) All rabbits will change color immediately.
B) The white rabbits may survive more often because they blend in better.
500
Explain the difference between biotic and abiotic
Biotic=living or once living
Abiotic=never living
500
A Texas Gulf Coast food web is shown.
According to this food web, which organisms would the bobcar and diamondback rattlesnake compete for if the mouse population and swamp rabbit population decreased?
Sparrow and Eastern cottontail rabbit
500
Students listed characteristics of some cells they had studied. Identify the charactertists that are are part of the cell theory.
Select TWO correct answers.
-Are the basic units of life
-Can only come from other cells.
500
True or False
All eukaryotic organisms are multicellular.
False
500
Explain how having different beak shapes in a population of birds can help them survive in changing environments.
Different beak shapes allow birds to eat different types of food. If one food source disappears, some birds may still survive by eating other food.