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Biology Test 43
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    Cleavage

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    It is series of mitotic cell division that changes zygote into multicellular embryo.
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    cellulose and are permeable to solutes.

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    Plant cell walls contain:
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    A population is increasing, moving toward its carrying capacity during both phases.

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    How are Phase 1 and Phase 2 of logistic growth similar?
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    provascular tissue

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    Primary phloem develops from ______.
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    xerophytes

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    Plants developing in dry conditions are?
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    Neither 1 nor 2

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    Consider the following statements: 1. During the process of osmosis,the solvent travels from the concentrated             solution to the dilute solution. 2. In the reverse osmosis,external pressure is applied to the dilute solution. Which of the statements given above is/are correct ?
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    Active transport

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    Movement of cell against concentration gradient is called ?
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    Hypothalamus

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    The part of the brain where the centre for hunger and thirst is located is?
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    Vitamin C

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    Egg is rich source of nutrients except ?
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    The open ocean begins at the low-tide mark and extends to the end of the continental shelf.

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    Which of the following statements is NOT true about the open ocean?
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    The trophic structure of a community describes abiotic factors such as rainfall and temperature affecting members of the community.

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    All of the following statements about communities are correct except?
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    both A and B.

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    Life history strategies result from
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    both experimentation

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    Ultimately, all scientific knowledge comes from.
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    46

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    Diploid chromosome number in humans is
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    Liver

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    Excessive consumption of alcoholic drinks causes damage to
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    Enterokinase

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    Which the following is a gastrointestinal hormone?
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    density

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    A biologist reported that a sample of ocean water had 5 million diatoms of the species Coscinodiscus centralis per cubic meter. What was the biologist measuring?
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    hypothalamus

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    The region of the brain that integrates visceral activites, body temperature and heartbeat is the_____.
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    Hepatitis B virus

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    The liver disease Hepatitis-B is caused by ...
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    Hydrogen

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    Which of the following does not cause atmosphere pollution ?
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    Nitrous Oxide

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    What is laughing gas?
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    a slow, gradual and continuous process.

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    According to Darwin, evolution is _______.
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    O

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    When red blood corpuscles containing both A and B antigens are mixed with your blood serum, they agglutinate. Hence your blood group is _______ type.
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    Botany

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    The study of the biology and systems of the Plant kingdom is known as what?
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    sporic

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    The plant alternation of generations is characterized by _______________ meiosis.
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    Growth plates are found in long bones that are still developing.

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    Which statement concerning the growth plate is true?
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    Triggers the immune system

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    Antigen is a substance which
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    Brain receives less oxygen as blood rushes toi supply oxygen and nutrition to the contracting stomach and intestines

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    Why do we feel drowsy after a heavy meal ?
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    They are the same as theories.

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    Which of the following statements concerning scientific hypotheses is false?
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    DNA and proteins

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    Chromosomes consist of.
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