Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
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Question 691: A fundamental similarity between nervous and hormonal system is that both
Options:
A) involve chemical transmission
B) have widespread effects
C) shed chemicals into the blood stream
D) evoke rapid responses
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The correct answer is D .
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Question 692: The center for learning and memory in the human brain is the
Options:
A) medulla oblongata
B) cerebellum
C) cerebrum
D) olfactory lobe
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The correct answer is C .
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Question 693:
Which of the following pairs of organisms are photosynthetic?
Options:
A) Amoeba and paramecium
B) Euglena and chlamydomonas
C) Volvox and Rhizopus
D) Nostoc and plasmodium
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The correct answer is B .
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Question 694: The small masses of nervous tissues in which many neurones have their nuclei are called
Options:
A) dorsal roots
B) ventral roots
C) ganglia
D) synapses
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The correct answer is C .
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Question 695: Which of these combinations is common to plant and animal cells?
Options:
A) Centriole, middle lamella, golgi bodies, mitrochondrion
B) Cytoplasm, sap, vacuole, starch grains, leucoplasts
C) Plasma membranes, chromosomes, mitochondria, lysosomes.
D) Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
E) Cytoplasm, centriole, cellulose cell wall, nucleolus
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The correct answer is C .
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Question 696: The movement response of a cockroach away from a light source can be described as
Options:
A) positive phototaxism
B) negative phototaxism
C) negative phototropism
D) positive phototropism
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The correct answer is B .
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Question 697: Plants that show secondary growth are usually found among the
Options:
A) thallophytes
B) pteridophytes
C) monocotyledons
D) dicotyledons
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The correct answer is D .
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Question 698:
Use the diagram above to answer this question. Arrows represent directional movement materials.
The arrow labelled ll represents the
Options:
A) release of oxygen
B) intake of carbon (IV) oxide
C) movement of photosynthates
D) movement of nutrients
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The correct answer is A .
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Question 699: The components of castor oil seed and the maize grain are similar EXCEPT for the
Options:
A) number of cotyledons
B) location of the embryo
C) number of radicles
D) number of plumules
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The correct answer is A .
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Question 700:
Sources of air pollutants are
Options:
A) industrial chimneys, burning fossil oils and river dams
B) sulphurdioxide, acid rain and pesticides
C) sulphur dioxide, vehicle exhausts, and aerosols
D) sewage,smoke and old vehicles
Show Answer
The correct answer is C .