Entri Populer

Jumat, 28 Desember 2012

Soal Biologi SMP RSBi campuran


51.  Extinction of an organism from the environment is caused by the human activities. Those human activities are as follows, except...
a. poaching
b. clearing
c. captivity
d. using pesticides

52. Scientist are found that, over a period of    
       200 years, a  mountain pond was  
       transformed into a meadow. During the  
       time, several communities of organisms  
       were replaced by different  communities.
       Which of these best explains why
       communities were able to replace older
        communities?
a. the original species became extinct
b. species in older community died from
    old age
c. the abiotic characteristics of the habitat
    changed
        d. diseases that killed the older organisms
    disappeared

53. which of these best illustrates natural
       selection?
       a. an organism with favorable genetic
  variations will tend to survive and breed   
  successfully
       b. a population monopolizes all of the
   resources in its habitat, forcing other
   species to migrate.
      c. a community whose members work
           together utilizes all exsisting resources
           and migratory routes.
      d. the largest organisms in a species receive
           the only breeding opportunities

54. a species of finch has been studied on one
       of the geographically isolated Galapagos
       Islands for many years. Since the island is
       small, the lineage of every bird for several
      generations is known. This allows a family
      tree of each bird to be developed. Some
      family groups have survived and others have
      died out. The groups that survive probably
       have...
a. interbred with other species
b. inherited some advantageous
     variations
c. found new places on the island to live
d. been attacked by more predators

55. a small population of chimpanzees lives in a
       habitat that undergoes no changes for a
       long period. How will genetic drift probably
       affect this population?
       a. it will accelerate the appearance of new
            traits
       b. it will promote the survival of      
           chimpanzees with benefical traits
       c. it will increase the number of alleles for
            specific traits
       d. it will reduce genetic diversity

56. according to the theory of natural selection,
       a species that lacks the variations necessary 
       to adapt to a changing environment will
       most likely...
a. become dormant
b. mutate
c. become extinct
d. fossilize
57. according to this information, which group     
       demonstrated the greatest biodiversity   
       during the Cretaceous period?

a.       Dinosaurs
b.      Crocodilians
c.       Snakes
d.      Lizards
58. which of the following plant groups is now
       extinct?
a. tree ferns
b. seed ferns
c. horsetails
d. strangler figs

59 . consider some of the following statements.
(1)    Green grashopper living in the grass can survive, while yellow grasshopper will be extinct eaten by its predator
(2)    All leaves of a plant color are green becuse the yellow leaves have been fallen blown by the winds.
(3)    Biston betularia moths living in England after industrial revolution whose colours are black are more than others because the smoke pollution disguises its predators’ view
(4)    the grass can be found everywhere because that plant is easy to adapt with the environment
Statements in accordance with the natural selection process are...
a.       1 dan 2
b.      1 and 3
c.       2 and 3
d.      2 and 4
60. What is most likely reason that the English
       preppered moth changed color, as a species
       between 1850 and 1900?
       a. an enviromental change forced it to
           adapt to survive
      b. new pigments became available because
           of technological advances
       c. the original moth population was eaten
           by rodents
      d. chemicals in the air caused genetic
           mutations
61. why do extinctions occur much more often
       in modern times than they did in the past?
       a. there are more organisms now, producing
            a corresponding increase in the extincion
            rate.
       b. a huge increase in human population has
            affected the environment
       c. animal species have become better at
            extinction, with years of practice
       d. all biological processes not just
           extinction, have sped up in modern time
62. the theory of... involves the survival and
       reproduction of organisms that are best   
       suited to their environment.
a. uniformitarianism
b. survival
c. environmentalism
d. natural selection
63. the following picture shows...
    
a.       Variation
b.      Adaptation
c.       Natural selection
d.      Evolution
64. reproduction in living things aims to...
a. adapt to the environment
b. fulfill the life needs
c. maintain the sustainibility of species
d. increase the number of population
65. Generative reproduction is shown by...
a. fragmentation on earthworms
b. budding on yeast
c. conjungation at Paramecium
d. growth of new individuals on banana trees
66. Generative reproduction is proceded by the
       fusion of male gametes and female gametes
       so that generations are...
a. adaptive to the environment
b. different in characters from the parent
c. better than the parent
d. more vulnerable than the parent
67. Consider the following table.
Num
Reproduction manners
Example of types
1
Adventies
Centella asiatica(pegagan)
2
Bulbous
Onion
3
Rhizome
Roses
4
stolon
strawberries

The correct reproduction manners and examples of plant doing the reproductions are....
a.       1, 2 and 3
b.      1, 2 and 4
c.       1, 3 and 4
d.      2, 3 and 4

68. The picture shows the fruit of the plant
       commonly called the beggartick. The spines
       on the tip of the fruit help in its dispersal by
       allowing the fruit to be ….
       a. blown by the wind
       b. carried on water
       c. attached to animals
       d. eaten by birds

69. An important evolutionary benefit of sexual
       reproduction is that ….
       a. it provides a mechanism for genetic
           recombination
       b. it requires a lower level of resource
            investment than asexual reproduction
             does
       c. the offspring will resemble their parents
            genetically
       d. the offspring will probably not mate with
            parents or siblings

70. Mr. Budi has a water guava plant A which
       has sweet and dense fruits, but the stems    
       are not strong. Mr. Marvel has a water
       guava plant B which has large stems and   
       strong roots. In order to obtain the water
       guava plant which has big stems, strong
       roots, and sweet and dense fruit, it needs to
       do the reproduction of ….
       a. crossing plant A and plant B
       b. connecting plant A and plant B; plant A as
            the main plant
       c. connecting plant A and plant B; plant B as
           the main plant
       d. sticking bud core of plant B on plant A

71. The followings are the animals doing the internal fertilization, except ….
72. The correct pair between the plant and the pollination manner is ….

Plants
Pollination manners
a.
Grass
Anemogamy
b.
Salvia
Anemogamy
c.
Wine
Hydrogamy
d.
Grass
Zoidiogamy

73. Group of organisms that are nearly extinct because of its low reproduction rate is ….
       a. tortoise and partridges
       b. penguins and komodo
       c. zebras and camels
       d. rhinoceros and elephants
74. Incorrect asexual reproduction manner of low rates organisms is shown by ….

Organisms
Reproduction manners
a.
Sponges
Fragmentation
b.
Worms
Parthenogenesis
c.
Coelenterates
Budding
d.
Arthropods
Parthenogenesis


75. The following animal which reproduces through eggs and doesn’t have fertilization is ….
76..
   Kind of fertilization in the picture above is
         ….

1
2
3
a.
Autogamy
Geitonogamy
Allogamy
b.
Autogamy
Allogamy
Geitonogamy
c.
Allogamy
Autogamy
Geitonogamy
d.
Geitonogamy
Allogamy
Autogamy

77. The followings belong to hermaphrodite animals, except ….
       a. jellyfish
       b. leech
       c. worms
       d. planarians

78. The correct maintenance way of embryos of the following animals is ….

Animals
Maintenance ways of embryos
a.
Buffalos
Ovipary
b.
Platypus
Vivipary
c.
Whales
Ovipary
d.
Cassowaries
Vivipary

79. The following plant has the reproductive asexual organ of ….         
      a. sucker
       b. rhizome
       c. corms
       d. tuber
80. Kalanchoe pinnata (cocor beber) plants have asexual reproduction organs of ….
       a. stolon
       b. bulbil
       c. adventives budding
       d. runner

81. Consider the following picture.
       The correct following statement about
        peafowl’s survival is ….
a.       There is no relation between the election of married couples and the survival peafowl
b.      Peahens do not choose a mate to reproduce
c.       Peacocks selected by peahens have the adaptive characteristics
d.      Peacocks having superior characterized usually have a few generations

82. Consider the following statements.
       (1) Amplexus in frogs is an example of an
             internal fertilization.
       (2) Gametes are usually produced in
             specialized structures known as gonads.
       (3) Hydras can reproduce sexually and  
             asexually
       (4) All animals have reproductive organs
            separated between males and females.

Incorrect statement above is number ….
a.       (1) and (2)
b.      (2) and (3)
c.       (2) and (4)
d.      (1) and (4)

83. Which of the following is not a form of  sexual reproduction….
A. Fragmentation
B. Budding
C. Parthenogenesis
D. syngamy
84. Sexual reproduction favors….
       a. hughly successful species
       b. stable populations
       c. beneficial recombination
       d. genetic diversity

85. The zygote of unicellular organism….
       a. always devides by mitosis
       b. alwayd devides by meiosis
       c. may devide by meiosis
       d. can only devide by binary fission

86. Most multicellular eukaryotes form gametes  
       by….
      a. parthenogenesis
      b. meiosis
      c. mitosis
      d. binary fission

87. Sexual reproduction involves the alternation
       of….
       a. mitosis and oogamy
       b. isogamy and meiosis
       c. meiosis and fertilization
       d. meiosis and oogamy

88. Which of the folloeing flowering
       arrangements promotes self-pillination?
       a. monoecious
       b. dioecious
       c. dichogamous
       d. none of the above

89. Plants the produce one ovules or pollen are
       called ….
       a. monoecious
       b. monogamous
       c. dchogamous
       d. dioecious

90. Palnts producing both staminate and  
      pistilate flower on the same plant are said to    
      be….
     a. monoecious
     b. dioecious
     c. heteroecious
     d. dichogamous

91. Self-pollination can occur in which of the
       following….
      a. dioecious palnts
      b. pistillate palnts
      c. staminate plants
      d. none of the above

92. Cross-pollination involves the exchange of
       genetic information between….
      a. the anther and carpel of the same plant
      b. two different plants of the same species
      c. two different palces sepecies
      d. a palnt species and an animal species

93. another term for spawing, or the releasing
      of gametes into water by aquatic animals,   
      is…..
      a. external fertilization
      b. internal fertilization
      c. ovulation
      d. aquatic fertilization

94. consider the picture of animal below!
    What is unusual about the reproductive    
     process of animal above?
    a. it is the only mamal that spaws
    b. it is marsupial, an animal with a pouch on   
         the outside of the mother’s body
    c. it has an unsually high rate of reproductive   
         success
    d. it is one of only two mamal species that
          lays shelled eggs

95. In sexual reproduction, a cell-division
      process called …. produces haploid gametes  
      from each parent.
      a. mitosis
      b. meiosis
      c. crossing over
      d. cloning

96. What is the term for the unusual method of
       reproduction shown in this sketch of the  
       planarian?
      a. budding
      b. binary fission
      c. fragmentation
      d. mitotic cell division

97. Which of the following is not a form of
       sexual reproduction?
      a. budding
      b. binary fission
      c. fragmentation
      d. pollination

98. The life cycle shown in this figure represents the…. 
      a. conjugation
      b. pollination
     c. alteration of generation
     d. meiosis

99. What is cross –pollination
      a. The transfer of pollen from the anther to   
           the carpel of the same plant
     b. The transfer of pollen from the anther of    
          one plant to the carpel of another pant of   
          different species
     c. The transfer of pollen from the anther of
         one plant to carpel of another pant of the
         same species
     d. The transfer of pollen from the carpel of
          one pant to the anther of another plant of
         the same species

100. How does internal fertilization male
         reproduction more efficient?
         A. Fewer eggs are needed because they
              are fertilized by fewer sperm
         B. Fewer eggs are needed because they
              develop sheltered in the mother’s body
         C. More eggs are produced in the
              protected environment and increase the
              chance of fertilization
         D. Eggs are often fertilized because the  
              sperm concertrated in the small are i
               nside the mother






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