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- 1. Multiple Choice
The diagram shows the embryos of six different species, what would be the most reliable way to tell if these organisms are related?Compare DNA from the species.See which species develops feet.Let the species grow up and compare them.See what species have tails. - 2. Multiple ChoiceWhich of the following is an example of a mutualistic relationship?tapeworms absorbing nutrients from dogsorchids being pollinated by a nectar collecting waspmosquito feeding on a humanan animal rotting in the soil at the base of a tree
- 3. Multiple ChoiceIf the following image represented a coral population over 40 years, what could be expected to happen after another 40 years?New species of coral will formSpecies will work together to survive.Populations will increasePopulations throughout the ecosystem will decrease
- 4. Multiple ChoiceWhich of the following demonstrates how different systems in a plant work together to perform a certain job?Roots absorb sugar from the leavesGlucose created by the leaves is transported by the phloem for storagexylem cells contract and expand to allow gas exchangeplant bends towards light to expose the underside of the leaf for gas exchange
- 5. Multiple ChoiceWhat affect do you think that the brown tree snake had on the bird population?no effectpopulation declinepopulation increasesnakes and birds formed a mutualistic relationship
- 6. Multiple ChoiceThe ten percent rule can best be stated as10 percent of energy is moved on from the trophic level below it.10 percent of energy is moved on from the trophic level above it.Half of the energy is moved from the trophic level below it.All of the energy is moved on from the tropic level below it.
- 7. Multiple ChoiceMangrove trees and oyster have a commensalistic relationship. Oysters will attach to the tree for protection and the mangrove tree has no benefit from this and is not harmed. Which of the following has the most similar relationship?African ants living in acacia trees feeding on leaf-eating insectsSpider crabs camouflaged by green-brown algae growing on their shellsA shark unaffected by the attached fish feeding on the shark's leftover food.Bees fly from one flowering plant to a second plant, gathering nectar and pollinating the flowers.
- 8. Multiple ChoiceCold sores are caused by the herpes simplex virus type 1. A company that wants to develop antiviral drugs would ask a research immunologist to study--the mechanism used by the virus to infect cellshow closely related the virus is to cold virusesthe metabolism of a virusmeiosis in the virus
- 9. Multiple ChoiceThe projections shown on this virus allows the virus to...move inside the host cellattach to the host cellcontrol a host cell's DNAsignal other viruses to infect a host cell
- 10. Multiple ChoiceThe graph above represents the approximate population size of each trophic level in a Grassland ecosystem. Which of the following is the most likely population size for the tertiary consumers?9,0001100,00056,891
- 11. Multiple ChoiceWhen thinking about the major mass extinction of the Earth, which of the following is the most likely scenario of the extinctions?A new predator evolves and kills all the speciesA larger number of producers provide more resources to species higher on the food chainA sudden, long-term change in the environment and most species are unable to adaptAll species adapt and turn into new species
- 12. Multiple ChoiceReggie owns a flower shop. He has a species of flowers, Flora spottist, that can grow in three form: yellow flowers (YY), blue fowers (BB), or flowers with yellow and blue spots (YB). Yellow and blue spots are the result of a heterozygous co-dominant trait.
Reggie’s notices that solid yellow Flora spottist are more popular than the other types, but Reggie only has one yellow flower plant. If Reggie wants to grow more yellow flowers plants, which parents should he choose if he wants the most yellow plants?Spotted flowers (YB) x Spotted flowers (YB)Spotted flowers (YB) x Yellow Flowers (YY)Spotted fowers (YB) x Blue flowers (BB)Yellow Flowers (YY) x Blue flowers (BB) - 13. Multiple ChoiceWhat is the primary function of this cell?Cellular communicationmuscle contractionwaste disposalextraction of energy
- 14. Multiple ChoiceYou catch the flue virus and are feeling horrible. In order to fight the infection, your muscles begin to shiver to raise your body temperature. Your blood vessles dialate (open up) to allow more nutrients to effected areas and encourage more white blood cells to travel to the infection.
Which body systems are working together in this example?Digestive, Reproductive, and SkeletalMuscular, Nervous, and IntegumentaryNervous, Immune, EndocrineImmune, Circulatory, Muscular - 15. Multiple ChoiceYou read a note from a mystery organism:
“I am a single-celled organism that often lives in or on your body. Only a few of me cause disease, but mainly I help with food digestion. Humans sometimes use me to process foods like yogurt. In addition, I have a cell wall but I do not have a nucleus.”
To which kingdom does this organism belong to?EubacteriaFungiPlantaeProtista - 16. Multiple ChoiceSevere acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms including a high fever, headaches, and body aches typically occur two to seven days after infection by the virus. SARS is more serious in elderly patients. This information suggests that the reproductive cycle of the SARS virus is —lysogenic, because the virus is a coronaviruslytic, because the virus causes respiratory illnesslysogenic, because the virus primarily affects older peoplelytic, because of the quick onset of symptoms after infection
- 17. Multiple ChoiceThe figure above represents some levels of organization in multicellular organisms. Which term fits in the box marked “X”?cellsorganellesorgansorganisms
- 18. Multiple ChoiceThe table shows the color distribution of a lizard population in an environment.
What conclusion can be drawn using only the information in the table?Yellow lizards can move more quickly than red or brown lizards.Yellow lizards are more likely than brown or red lizards to survive to reproduce.Yellow lizards are most likely to be seen by predators.Yellow lizards can use food sources that red and brown lizards cannot. - 19. Multiple ChoiceWhich feature might be used to distinguish secondary succession from primary succession?The lack of pioneer species in the first stageThe presence of pioneer species in the final stageThe presence of trees and large plants in the final stageThe presence of soil and organic matter in the first stage
- 20. Multiple ChoiceWhen humans perspire, water, urea, & salts containing sodium are removed from the blood. Drinking water during extended periods of physical exercise replenishes the water but not the sodium. This increase in water dilutes the blood & may result in the concentration of sodium dropping low enough to cause a condition known as hyponatremia.The best way to prevent hyponatremia would be to…drink more watereat chocolateeat salty foodsdrink cranberry juice
- 21. Multiple ChoiceMany plants in the rainforest (lots of rain) have broad, wide leaves, while plants found in dry grasslands (little rain) typically have thin, narrow leaves.
What could account for the differences found between these plants?Plants in the rainforest have adapted to take advantage of higher levels of rainfall.Plants in the grasslands have adapted to not compete and share the sunlight.Narrow leaves meant the plants in the grasslands do not have any herbivores to eat them.Wide leaves mean the plants in the rainforest can save water for dry seasons. - 22. Multiple ChoiceThe outermost layer of plant stems in dicotyledons consists of epidermal cells and guard cells that surround openings called stomata. The epidermal cells are usually covered with a waterproof layer that provides protection from injury and water loss. The stomata allow for gas exchange. The epidermal cells and stomata have functions similar to those of which two human body systems?A) Skeletal and respiratoryCardiovascular and SkeletalRespiratory and integumentaryCardiovascular and muscular
- 23. Multiple ChoiceWhich of the following is an abiotic factor that can influence an ecosystem?An invasive speciesA producerThe average temperatureThe amount of bacteria
- 24. Multiple ChoiceWhich ecosystem has a better chance of surviving when environmental conditions change over a long period of time?One with a great deal of genetic diversityOne with plants and animals but no bacteriaOne with animals and bacteria but no plantsOne with little or no genetic diversity
- 25. Multiple ChoiceIf transpiration stopped completely, how would a plant's homeostasis first be affected?More carbon dioxide molecules would be taken in by the leaves.Fewer sugars stored in roots and stems would diffuse into the soilCarbohydrates would no longer be formed.Water molecules would not be released from the leaves.
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