(i) Dorsal, / anal fins
(ii) Pectoral / pelvic fin
(iii) Dorsal / ventral / caudal fin
sharon kalunda answered the question on March 22, 2019 at 06:55
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What happens when respiration exceeds photosynthesis in the guard cells of terrestrial plants?
(Solved)
What happens when respiration exceeds photosynthesis in the guard cells of terrestrial plants?
Date posted:
March 22, 2019
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Answers (1)
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Two populations of the same species of birds were separated over a long period of time by an ocean. Both populations initially fed on insects...
(Solved)
Two populations of the same species of birds were separated over a long period of time by an ocean. Both populations initially fed on insects only but later it was observed that one population fed entirely on fruits and seeds although insects were available. Name;
(a) The type of isolation.
(b) The type of evolutionary change.
(c) What are vestigial structures?
(d) Name one vestigial structure in man.
Date posted:
March 21, 2019
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Answers (1)
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Eight potato cylinder of the same size were used to investigate a certain physiological process. Four of the potato cylinders were placed in solution S....
(Solved)
Eight potato cylinder of the same size were used to investigate a certain physiological process. Four of the potato cylinders were placed in solution S. The other four potato cylinders were placed in solution T. After 2 hours, the potato cylinders from solution S were found to longer and stiff, while those from solution T were found to be shorter and flexible. Explain the
results in solution S and T.
(b) Distinguish between active transport and diffusion.
Date posted:
March 21, 2019
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Answers (1)
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List two enzymes that are secreted in their precursor forms.
(Solved)
List two enzymes that are secreted in their precursor forms.
Date posted:
March 21, 2019
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Answers (1)
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Three tubes each containing 1ml saliva and 1ml water were incubated in water baths at different temperatures as shown in the diagram below for 30...
(Solved)
Three tubes each containing 1ml saliva and 1ml water were incubated in water baths at different temperatures as shown in the diagram below for 30 minutes. Another one tube containing 1ml starch solution was incubated for the same length of time in each water bath. The contents of the two tubes in each water bath was then mixed and incubated for further 30 minutes.The content of each tube was then tested for starch using iodine solution.
a) What was the aim of the experiment?
(b) Why was it necessary to incubate the tubes for 30 minutes before mixing their contents?
(c) State the colour changes you would expect to observe after adding iodine solution.
(d) Account for the expected observations.
Date posted:
March 21, 2019
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Answers (1)
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What biological knowledge or study is required in dealing with locusts that infest a maize crop.
(Solved)
What biological knowledge or study is required in dealing with locusts that infest a maize crop.
Date posted:
March 21, 2019
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Answers (1)
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Describe the digestion, absorption and assimilation of milk in humans.
(Solved)
Describe the digestion, absorption and assimilation of milk in humans.
Date posted:
March 15, 2019
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Answers (1)
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Explain the Ways in which erect posture is maintained in a Weak herbaceous stem
(Solved)
Explain the Ways in which erect posture is maintained in a Weak herbaceous stem
Date posted:
March 14, 2019
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Answers (1)
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State two differences between biceps and muscles of the intestines.
(Solved)
State two differences between biceps and muscles of the intestines.
Date posted:
March 12, 2019
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Answers (1)
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State three ways in which Ascaris lumbricoides adapted to living in its habitat.
(Solved)
State three ways in which Ascaris lumbricoides is adapted to living in its habitat.
Date posted:
March 12, 2019
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Answers (1)
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Explain the ways in which a typical cell is adapted to its functions.
(Solved)
Explain the various ways in which a typical cell is adapted to its functions
Date posted:
March 12, 2019
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Answers (1)
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The population of fish pond in a pond was estimated using capture-recapture method.
(i)What equipment was used?
(ii)Describe the procedure used in the experiment.
(iii)State the formula...
(Solved)
The population of fish in a pond was estimated using capture-recapture method.
(i)What equipment was used?
(ii)Describe the procedure used in the experiment.
(iii)State the formula for calculating the total population of fish in the pond.
Date posted:
March 10, 2019
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Answers (1)
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State the method of dispersal for each of the following fruits:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)wind.
(ii)Censor mechanism.
(Solved)
(a)State the method of dispersal for each of the following:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for each of the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)Wind.
(ii)Censor mechanism.
Date posted:
March 2, 2019
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Answers (1)
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Explain why several lateral buds sprout when the terminal bud in a young tree is cut off.
(Solved)
Explain why several lateral buds sprout when the terminal bud in a young tree is cut off.
Date posted:
March 2, 2019
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Answers (1)
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What are the Economic importance of protoctista?
(Solved)
What are the Economic importance of protoctista?
Date posted:
February 28, 2019
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Answers (1)
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Explain how predators are adapted to capture their prey
(Solved)
Explain how predators are adapted to capture their prey
Date posted:
February 18, 2019
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Answers (1)
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Explain why xylem vessels have dead cells
(Solved)
Explain why xylem vessels have dead cells
Date posted:
February 18, 2019
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Answers (1)
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In an experiment, a piece of brain was removed from a rat.It was later found that the rat had large fluctuation of body temperature. Suggest...
(Solved)
In an experiment, a piece of brain was removed from a rat. It was later found that the rat had large fluctuation of body temperature. Suggest the part of brain which had been removed.
Date posted:
February 15, 2019
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Answers (1)
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Explain why adenine and thymine have double bond while cytosine and guanine have triple bond
(Solved)
Explain why adenine and thymine have double bond while cytosine and guanine have triple bond.
Date posted:
January 20, 2019
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Answers (1)
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Give two importance of respiratory quotient
(Solved)
Give two importance of respiratory quotient.
Date posted:
January 6, 2019
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Answers (1)