Honors Biology 3

32. Which is an example of a learned behavior? A A bear cub practices catching salmon the way its mother does. B A baby gazelle rises to its feet within a few minutes of its birth. C A baby kangaroo climbs into its mother’s pouch as soon as it is born. D An adult salmon returns to its freshwater stream when it is time to reproduce.

Sandworms are annelid worms that live on the seafloor. They absorb oxygen and excrete wastes through their skin. Which characteristic will best help the worm carry out these functions?A large number of heartsB large diameter blood vesselsC large mouth compared to body volumeD large surface area compared to body volume

34. Which reproductive adaptation is more characteristic of mammals than amphibians? A external fertilization with internal developmentB internal fertilization with internal developmentC external fertilization with external developmentD internal fertilization with external development

35. What kingdoms did Carolus Linnaeus originally use for his classification system? A Fungi and Protista B fungi and Animalia C Plantae and Protista D Plantae and Animalia

36. After an initial infection, B-cells recognize the measles virus. How is this helpful in human immune response? A The B-cells use this recognition to defend the body against other pathogens, such as bacteria. B The B-cells more quickly recognize and respond to any other virus that invades the body. C The B-cells produce antibodies more quickly if the measles virus is encountered again. D The B-cells transfer this recognition to T-cells, which will then devour the viruse

37. What is the main function of leaves? A Leaves provide support for growth and a place to store food. B Leaves provide a place for photosynthesis to occur. C Leaves absorb water and minerals and transport nutrients to the stem. D Leaves create a barrier that prevents water in the plant’s tissues from evaporatin

38. In an ecosystem, which is the most likely reason for an increase in the producer population if there is an increase in the carnivore population? A fewer hebivoresB higher temperaturesC less foodD more oxygen

41. Which is the most likely function of a group of cells that contains a high number of chloroplasts? A respiration B transpiration C fermentation D photosynthesis

42. What will most likely happen if an appropriate enzyme is added to a chemical reaction? A The reaction rate will increase. B The equilibrium of the reaction will be maintained. C The reaction rate will decrease D The reaction will stop

43. In humans, glucose is kept in balance in the bloodstream by insulin. Which concept does this best illustrate?A adaptation B homeostasis C metabolism D organization

44. A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound? A carbohydrates B lipids C nucleic acids D proteins

45. In which way are photosynthesis and cellular respiration different? A Cellular respiration stores ATP, while photosynthesis releases ATP. B Cellular respiration produces oxygen, while photosynthesis uses oxygen. C Photosynthesis releases energy, while cellular respiration stores energy. D Photosynthesis uses carbon dioxide, while cellular respiration prod

47. A researcher sprays a new pesticide on thousands of insects of the same species that live in a large field. A few of the insects survive. What can be concluded by the researcher?
A The species of insects will likely become resistant to the pesticide.
B The ideal interval between the first and second applications of the pesticide should be increased.
C The pesticide has no effect on the species.
D The concentration of the pesticide was too weak.

48. According to fossil records, the horses that lived 50 million years ago were much smaller, weaker, and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses? A commensalism B inbreeding C migration D natural selection

49. In a particular species of plants, when the soil pH is greater than 7, blue flowers are produced. However, when the soil pH is less than 7, pink flowers are produced. Which statement bestexplains the color change in the plant? A Multiple alleles determine the color of the flowers. B The change in flower color is a result of a mutation. C Polygenic inheritance produces the different flower colors. D The environment influences the expression of the gene for flower color