Worksheets7th grade Semester Exam 2
Total questions: 20
Worksheet time: 3600secs
What is the correct order for the levels of Organization from simplest (smallest) to most complex(largest)?
Cell, Tissue, Organ, Organ system, Organism
Organism, Organ System, Organ, Tissue, Cell
Tissue, Cell, Organ, Organ System, Organism
Organism, Cell, Organ System, Organ, Tissue
The smallest unit of life is called the:
(a)
DNA is contained in which organelle within a cell?
Mitochondria
Cell Wall
Nucleus
Cytoplasm
The plant in the picture is demonstrating which type of tropism?
Geotropism
Hydrotropism
Thigmotropism
Phototropism
The physical or chemical breakdown of rock is known as:
Weathering
Erosion
Deposition
Which Ecoregion would be most affected by a hurricane?
1. Piney Woods
2. Gulf Coast
8. Rolling Plains
9. The High Plains
Which of the following is NOT a characteristic of our solar system that allows for life on Earth?
The availability of liquid water
The composition of our atmosphere
Our proximity to the sun
The molten magma core found inside
The movement of loose sediment is known as:
Weathering
Erosion
Deposition
The heart is the main structure in which organ system?
Digestive
Circulatory
Respiratory
Skeletal
What is the function of the Respiratory System?
Chemical and mechanical breakdown of food
Allows for movement of the body
Provides structure and protects vital organs
Gas exchange
What is the name of the organ system shown?
Excretory System
Muscular System
Skeletal System
Respiratory System
If the population of grasshoppers decreased, which of the following would we NOT expect to see happen?
The frog population would decrease
The bird population would decrease
The snake population would increase
Which TWO are the pioneer species of primary succession?
Rodents
Tall trees
Mosses
Lichens
As a result of different food sources on the Galapagos islands, which of the following structures of the Galapagos finches experienced the greatest change through natural selection?
Eye Shape
Feather Color
Beak Shape
Which of the following is NOT an example of selective breeding?
Humans breeding different types of dogs
Giraffe necks becoming longer to reach the food
Humans breeding cows for increased milk production
Humans breeding larger ears of corn as a source of more food
Students have found an insect that has wings that point outward from the body and are not covered by an exoskeleton. Which insect did they find?
(a)
The passing of traits from parent to offspring:
Digestion
Mechanical
Heredity
Nucleus
Is the sun a biotic factor or an abiotic factor?
Biotic
Abiotic
Uniform offspring are gentically______ to each other.
Identical
Diverse
Biodiversity is...
Overall organisms on Earth
The health of a species on Earth
The variety of organisms within an ecosystem
