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WorksheetsScience Final Exam
Total questions: 40
Worksheet time: 20mins
Three cousins have a similar appearance but different face shapes. Which of these cell components are most involved in determining the basic shape of each girls face.
Genes, chromosomes, and nucleus
Cytoplasm, chloroplasts and genes
Vacuoles, nucleus, and chromosomes
Chromosomes, chloroplasts, and vacuoles
Which organelle stores the information that determines an individuals blood type?
Organelle 1
Organelle 2
Organelle 3
Organelle 4
When people run long distances, their muscles require increased amounts of oxygen. Which system is responsible for carrying this oxygen to the muscles?
Nervous
Respiratory
Digestive
Circulatory
A student drew the picture of a human body system shown. The student labeled some of the organs of the system. The main function of this human body system is to _____________
sense orders in the environment.
exchange gases with the environment
chew food as it enters the mouth
trap particles that enter the nose
Many processes occur in the digestive. Which process is best classified as a physical change
Saliva converting the starch molecules in crackers into simple sugars.
Digestive enzymes breaking down proteins into smaller fragments
Bacteria converting lactose into simple sugars in the intestines
Teeth grinding an almond into smaller pieces in the mouth
Hydra reproduce asexually by budding, a process in which a bud breaks off an adult hydra and floats away. Which of the following best describes a hydra bud.
A hydra bud contains genetic material from it two parents
A hydra bud is genetically identical to the parent hydra
A hydra bud has different mutations than the parent hydra
A hydra bud has half as much genetic material as the parent hydra.
Certain species of whiptail lizards have only female individuals and no males. These lizards reproduce asexually. What is one disadvantage of asexual reproduction for these lizards?
A new population can be established by a single individual in a relatively short period of time.
All the members of a population are genetically very similar and less able to survive environmental changes.
They are smaller than lizards that reproduce sexually.
They are more likely to develop a variety of tail lengths
Some dairy farmers want to increase the amount of milk produced by their cows. How can the farmers use selective breeding to increase milk production.
By increasing the age of the cows that are bred
By choosing cows that are high milk producers
By limiting the number of offspring per cow
By choosing cows that can produce milk after eating the most food
The Couch spadefoot lives in Texas and has the characteristics listed below. The Couch's spadefoot is adapted to a certain type of environment. Which of these resources is most likely scarce in this environment?
Soil
Sunlight
Water
Oxygen
Black walnut trees produce a nontoxic chemical that becomes highly toxic when it is exposed to air or soil. How does this chemical help black walnut trees compete with plants growing nearby.
By attracting herbivores to other other plants
By suppressing the growth of the other plants.
By increasing the photosynthesis rates in the other plants
By limiting the amount of water available to the other plants
A student examines the winged insect shown below. Based on the dichotomous key, in what order should this insect be classified.
Mantodea
Raphidioptera
Coleoptera
Lepidoptera
What is one condition that is necessary for a hurricane to form?
Warm ocean water
A strong cold front
Cold ocean water
A strong warm front
A student sets up the investigation shown below. The movement of colored water through the gravel best models ______.
condensation of water vapor
surface runoff of precipitation
conservation of water
pollution of groundwater
A student drew the model below to represent a part of a watershed and some human activities that affect the watershed. How do the industrial, agricultural , and residential activities of humans most likely affect the groundwater in the area.
The activities prevent most of the water from evaporating
Pollutants from the activities percolate through the soil and enter the water table
The activities replace the groundwater used.
All of the above
Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?
Vacuole
Nucleus
Chloroplast
Cell Membrane
Some students collected leaf samples. The student used the leaf identification key shown below to identify a leaf sample. Based on the identification key, which type of tree is this sample from?
Ginkgo
Honey locust
Horse chestnut
Black maple
Which of the following correctly orders the organization in plants and animals from least to most complex?
Organisms --> Organ Systems --> Organs --> Tissues --> Cells
Tissues --> Cells --> Organs --> Organisms --> Organ Systems
Organs --> Tissues --> Organisms -->Cells --> Organs Systems
Cells --> Tissues --> Organs --> Organs Systems --> Organisms
A student's model of an area near a city depicts many activities that affect the quality of the water in the area. How does the agricultural activity most likely affect the surface water of the area?
excess crop fertilizer is carried by runoff into the river, causing excess growth of water plants.
Excess crop material accumulates on the riverbanks, slowing the movement of the river water.
Crops reduce erosion increasing the amount of soil entering the river.
Crops absorb pure water from soil, causing the remaining water to contain more salt.
Both primary and secondary succession begin with pioneer species that ____
Change the area make it safer from predatory organisms
invade the area so that new organisms cannot be established
modify the area and allow larger and more complex organisms to appear
use up al the existing resources and prevent establishment of non-native organisms.
Which table best shows some functions of the circulatory, respiratory, digestive, and endocrine systems?
A
B
C
D
Which organisms in the food web shown above compete for the same food source in this environment?
Grasshoppers and snakes
Hawks and frogs
Frogs and snakes
Decomposers and grasses
The food webs below model relationships among the organisms in two ecosystems. Which ecosystem would be more likely to survive if a disease killed the grasses?
The forest ecosystem, because most of the animals can eat other organisms?
The grassland ecosystem, because several predators compete for food.
The forest ecosystems, because it has three top predators.
The grassland ecosystem, because it has many herbivores.
Some students take care of a vegetable garden. When it is time to plant in the spring, the students leave part of the garden empty in order to observe ecological succession. Which of these will most likely occur first?
Development of topsoil
Growth of weeds and grasses
Growth of trees and shrubs
Development of a steam
Thunderstorms are more common in some areas than in others. The map shows the average number of thunderstorms per year in different parts of the United States. Why are there significantly more thunderstorms in Florida than California.
The stat of Florida is smaller than the state of California
The air in Florida is more stable than air in California.
The air above Florida holds less moisture than the air above California.
The ocean currents near Florida are warmer than the ocean currents near California.
Hurricanes and similar storm systems begin over oceans. The map below shows average surface temperatures in the summer. Based on the map, which area probably the most violent storm systems?
Area 1
Area 2
Area 3
Area 4
These species are very similar, but the Hood mockingbird has a longer beak than the other three species. which of the following best explains this difference?
The Hood mockingbird needs a longer beak for defense against predators.
The Hood mockingbird originated from a different type of bird than the other species.
The Hood mockingbird's longer beak is an adaptation to the food available in the bird's habitat.
The Hood mockingbird's beak stretched to reach its food, and the longer beak was passed down to its offspring.
A diagram of a plant cell is shown below. The function of the plant cell structure shown in the enlargement is to _____
provide support for the cell
direct all the cell's activities
use energy from sunlight to make sugar
regulate substances that enter and exit the cell
A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem. Which food web best represents the flow of energy in these feeding relationships?
A
B
C
D
The flow of energy in some Australian food chains is modeled in the energy pyramid below. Based on the model, which consumers would receive the greatest amount of energy captured by the producers in their food chains?
Wedge-tailed eagles
Chuditch
Ring-tailed opossums
Eucalyptus trees
Based on these observations, which ecosystem is likely to be the least sustainable?
Ecosystem 1, because it has the fewest species
Ecosystem 2, because it includes both aquatic and terrestrial species
Ecosystem 3, because it has few predators
Ecosystem 4, because it supports many animals
Tropical rain forests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem.
The presence of more species with different adaptations makes it more likely that some organisms will survive an ecological disaster.
Greater genetic variation within species makes it more likely that some individuals will survive a disease outbreak
The presence of a variety of herbivore species that can feed on a large number of different producer species helps ensure abundant prey for predators in the ecosystem.
all of the above.
A student listed how different parts of the body work to aid in the digestion of food. Which of the following is a chemical change that occurs to the food?
The reduction in size of food particles as food is chewed.
The movement of food to the stomach after food is swallowed
The breakdown of molecules of food by enzymes and acid in the stomach
None of the above
Which table correctly describes the function of the cell structures listed?
F
G
H
J
Which explanation most likely accounts for the increase in the number of male butterflies in the five years after the initial parasite problem?
Male butterflies in the population that survived were able to prey on the parasites living in the females' egg cells.
Female butterflies in the population that survived had a genetic adaptation that allowed them to transform into male butterflies.
Male butterflies in the population that survived had a gene that made them resistant to the parasite, and they passed the gene on their offspring.
Female butterflies in the population that survived were able to protect the male eggs from the parasite and provide extra care for the male offspring.
In humans, the heart is an organ that pumps blood through blood vessels. The combination of the heart and blood vessels is classified as ________
a tissue
an organ
an organ system
an organism
What statement was developed most directly from these conclusions and is part of the modern cell theory.
the functions of living things occur in cells
Cells exist only in multicellular organisms.
Living things are composed of cells.
Cells contain hereditary information.
Which statement is also part of Virchow's cell theory?
all cells have a cell wall
all cells arise from pre-existing cells.
all cells are capable of photosynthesis
all cells can develop into any other type of cell
A group of students prepared a table listing the types of reproduction that occur in several organisms. Based on this information, which of the organisms can produce offspring that are genetically identical to the parent organism?
Ferns only
Amoebas and yeasts only
Cats, hydras, frogs, and ferns only
Amoebas, yeasts, hydras, and ferns only
Which statement explains the increase in gill surface area seen in some of Lake Victoria's cichlids?
Increased gill surface area has allowed the cichlids to change their diet and avoid competing with the Nile perch.
Increased gill surface area has allowed the cichlids to be camouflaged and avoid being eaten by the Nile perch.
Increased gill surface area has allowed the cichlids to leave Lake Victoria and establish populations in nearby bodies of water.
Increased gill surface area has allowed the cichlids to better absorb the limited oxygen in the water
Part of a human body system is pictured. The main function of this system is to _______
control reproduction
transport oxygen
produce hormones
remove waste
