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WorksheetsFinal Exam Review
Total questions: 25
Worksheet time: 1hrs 3mins
In the diagram, which organism goes through photosynthesis; converting light energy to chemical energy?
Sun
Hawk
Grasshopper
Grass
Mushrooms, which are decomposers, are vital components of the north Texas food chain. Which description most closely explains why these mushrooms are so important?
Mushrooms are an important food source for herbivores
Mushrooms consume nitrogen from the soil and release it into the atmosphere
The descriptions are false; mushrooms are not vital components of the food chain because most of them are poisonous
Without them, organic matter could not be recycled into the food chain.
What would happen if pesticides drastically reduced the number of caterpillars in the food chain?
Sun --> Fig --> Caterpillar --> Lizard --> Eagle
The lizard population would adapt to eating the strangler fig
The fig population would increase; the lizard population would decrease
The lizard population would remain the same; the strangler fig population would decrease
The fig population would be unaffected; the lizard population would increase
What happens to the solar energy absorbed by plants during photosynthesis?
It is recycled by the plant and returned to the atmosphere
It is converted into oxygen and glucose
It is stored as heat within the plant for cellular functions
It is transformed into chemical energy
What effect does the increase in human population most likely have on the biodiversity of the plant species found in the rainforest?
As human population increases, the succession in the rainforest leads to increased biodiversity
As human population increases, the diversity of larger rainforest plant species increases
As human population increases, the number of individual rainforest plant species increases
As human population increases, the diversity of all rainforest plant species decreases.
Succession leads to a change in the plant species in an area over time. The FINAL stage is the forest, which remains stable for a long time.
Which of these BEST explains why forest trees are the final stage in succession in this type of ecosystem?
Trees are very large and use up all of the available nutrients
Trees have deep roots and soak up all of the groundwater
Trees are tall and make it hard for small plants to grow because they block the sunlight
Trees have many leaves and keep other plants from growing by using the available air
The following computer model was created to illustrate how a watershed can be affected by human activities. What is the most likely reason for placing the farmland upstream from the factories?
The water at the highest point of the river will have been impacted the least by human activities, so it should be the cleanest.
Farms do not have a negative impact on watersheds, so they should be placed upstream.
The factory puts pollution into the air, so it does not matter where the farm is located.
The farm should be placed upstream because pesticides from the farm will end up in the river, which is beneficial for the factories downstream.
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 stream
What would be one possible explanation for why an ecosystem with low biological diversity could suffer severe biological harm if even small changes were to take place in the ecosystem?
The ecosystem has abundant resources, and the organisms depend on each of them
Abiotic factors such as light and water are very plentiful, affecting the interactions between different species
Each of the species is more dependent on a low number of factors in the ecosystem
Each species is specialized to the limited conditions of the ecosystem and is therefore more able to adapt
Which cell organelle has the function of taking in nutrients, breaking them down, and creating energy for the cell?
Mitochondrion
nucleus
cell membrane
chloroplast
Which of the following describes a physical change which occurs during the digestive process?
the partial breakdown of food in the mouth by saliva
the breakdown of carbohydrates in the stomach by hydrochloric acid
the changing of large fat molecules into smaller, simpler substances in the liver
the change in shape of food as it is chewed
Which statement best describes the function of 4 in the digestive process?
moves food to the teeth for chewing and to the back of the throat for swallowing
produces chemicals which lubricate food and begins the digestive process
physically breaks down large food particles into smaller ones
carries food from the mouth to the stomach
Crickets communicate with other crickets by chirping. Crickets who cannot make a sound are less likely to find a mate and reproduce. For this reason, there are few crickets that cannot make a sound.
This is an example of —
learned behavior
genetic replication
natural selection
selective breeding
A plant breeder is MOST likely to produce offspring with new combinations of traits by
cutting one leaf from a plant and placing the leaf in moist soil
exchanging grains of pollen between two different colored roses
grafting (attaching) a branch from an apple tree onto the branch of a pear tree
taking the young plants that grow on the runners of a strawberry plant
Scientists plan to use selective breeding to produce a new type of wheat for farmers who live in northern areas with short summer seasons.
Which of these traits would be MOST useful for these farmers?
large seed size
long stem length
fast growth rate
shallow root systems
All of the following are statements that describe asexual reproduction EXCEPT-
The offspring are identical to the parent
The offspring is made of cells
Offspring are produced when cells from two different organisms combine
There is no variety or diversity in the offspring
The reaction of your body and mind to threatening, challenging, or disturbing events is called?
An internal stimulus
Homeostasis
Stress
An external stimulus
Which type of joint allows for the greatest range of motion?
Pivot joint
Gliding joint
Hinge joint
Ball and socket joint
Which of these structures is most abundant (the most) in the human body?
Systems
Cells
Tissues
Organs
What substance in the mouth contains an enzyme that begins chemical digestion?
Fiber
Pepsin
Mucus
Saliva
Which of the following shows the most logical sequence of the parts in a system?
Organism --> cells --> tissues --> organs --> organ systems
Cells --> tissues --> organs --> organ system --> organism
Tissues --> cells --> organs --> organ systems
Cells --> tissues --> organisms --> organs
Which of these is NOT a function of the circulatory system?
Attacking disease-causing microorganisms
Carrying oxygen, glucose, and other needed materials
Carrying CO2 (Carbon Dioxide) and other cellular waste away from cells
Controlling many body processes by means of chemicals
What organ produces bile, a chemical that helps break down fatty foods?
Stomach
Pancreas
Small intestine
Liver
What substance in the stomach helps to chemically break down food?
Hydrochloric Acid (HCl)
Saliva
Mucus
Water
When we exercise, our bodies have to work harder. Our tissues require more oxygen to function. Our bodies respond by
Decreasing heart rate
Decreasing breathing rate
Increasing carbon dioxide (CO2) intake
Increasing breathing rate (O2) intake
