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 1881: 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
Show Answer
The correct answer is C .
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Question 1882:

From the diagram above the part labelled IV represents the
Options:
A) colon
B) ileum
C) caecum
D) duodenum
Show Answer
The correct answer is D .
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Question 1883: The theory of natural selection was developed by
Options:
A) Lamarck and Darwin
B) Darwin and Wallace
C) Wallace and Mendel
D) Mendel and Larmack
Show Answer
The correct answer is B .
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Question 1884: For effective functioning of a bird's quill feather, hooks fit on the ridge of the
Options:
A) Vane
B) rachis
C) barbules
D) barbs
Show Answer
The correct answer is C .
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Question 1885: Bird toes suitable for digging have claws that are
Options:
A) blunt
B) curved
C) hooked
D) sharp
Show Answer
The correct answer is A .
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Question 1886: The mode of nutrition of sun dew and bladder wort can be described as
Options:
A) saprophytic
B) holozoic
C) chemosynthetic
D) autotrophic
Show Answer
The correct answer is B .
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Question 1887: If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?
Options:
A) water does not reach the leaves
B) water and salts remained below the ring portion
C) there is a withdrawal of water from the root by soil
D) manufactured food does not reach the roots
E) the roots store too much water
Show Answer
The correct answer is D .
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Question 1888: The opening of the stoma is controlled by the
Options:
A) presence of a pore
B) increase in solute concentration in the guard cells
C) presence of guard cells
D) decrease in solute concentration in the guard cells
Show Answer
The correct answer is B .
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Question 1889: The gland directly affecting metabolic rate, growth and development is known as
Options:
A) adrenal land
B) thyroid gland
C) mammary gland
D) parathyroid gland
Show Answer
The correct answer is B .
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Question 1890: Mycorrhizae promote plant growth by
Options:
A) absorbing inorganic ions from the soil
B) protecting it from infection
C) helping it to utilize atmospheric nitrogen
D) serving as a growth regulator
Show Answer
The correct answer is A .