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a) A Nastic response / haptonasty;
B Thigmotropism;
b) A
-The plant secrets sugary secretions that attract insects.
-Insect touch is sensitive / triggers hairs in the leaves / midrib. The midrib cells lose water by osmosis; the midrip becomes flaccid causing the trap to spring and thus trap insects due to interlocking of the spines.
B
-At the point of contact, Auxins /IAA to migrate to side away from contact; reaching to a higher auxins concentration at point away from contact than at point of contact.
-High auxin concentration stimulate shoot growth thus side away from contact grows faster than the side in contact; leading to continuous coiling of the shoot / tendrils along support material.;
c) A
- Enables feeding in insectivorous plant.
B
- Enables shoots of herbaceous plants to obtain support to expose leaves for photosynthesis; flower for pollination fruits and seeds for dispersal.;
d) Nitrogen deficient soil / marshy areas.;
sharon kalunda answered the question on May 23, 2019 at 14:36
- Examine the photograph which shows parts of the urogenital system of a female rat and answer the questions that follow. The
organ marked 1 is the...(Solved)
Examine the photograph which shows parts of the urogenital system of a female rat and answer the questions that follow. The
organ marked 1 is the stomach.
a) i) Name the organ marked 2 .
ii) State two functions of the organ.
iii) What is the functional unit of the organ named in (a) (i) above?
b) i) Identify and name each of the organs marked 3 and 4.
ii) State two functions of the part marked 4.
c) i) Identify and name the organ marked 5.
ii) Explain two functions of the organ named c(i) above.
d) The organ marked 6 is the large intestine. State two functions of the large intestine.
Date posted: May 23, 2019. Answers (1)
- Examine the photograph of a fish shown below.
a) Name the fins responsible for the following during swimming.
i) Balance, break and change direction.
ii) Prevent fish...(Solved)
Examine the photograph of a fish shown below.
a) Name the fins responsible for the following during swimming.
i) Balance, break and change direction.
ii) Prevent fish from rolling and yawing
b) Explain the process of gill ventilation between part labelled S to part labelled T.
c) State one adaptation each for the structures labelled K and L.
d) Name the parts labelled U and W.
Date posted: May 23, 2019. Answers (1)
- The photographs below shows a pair of mammalian organs with their blood supply. One of the organs has been sectioned
longitudinally. Examine them.
a) Identify the pair...(Solved)
The photographs below shows a pair of mammalian organs with their blood supply. One of the organs has been sectioned
longitudinally. Examine them.
a) Identify the pair of organs.
b) i) Name the blood vessels labelled M, P and Q
ii) Which of the blood vessels P and Q carries blood with a higher concentration of urea ? Give a
reason for your answer.
Blood vessel
Reason
c) Name the structures labelled R and state its function.
Name .
Function .
d) i) Name the parts labelled S and T
ii) Name two parts of the nephron found in the part labelled S.
Date posted: May 23, 2019. Answers (1)
- Give a reason why lack of roughage in the diet often leads to constipation.(Solved)
Give a reason why lack of roughage in the diet often leads to constipation.
Date posted: May 23, 2019. Answers (1)
- State how excessive use of pesticides may affect soil fertility.(Solved)
State how excessive use of pesticides may affect soil fertility.
Date posted: May 23, 2019. Answers (1)
- Explain how the process of evolution may result to the formation of a new species.(Solved)
Explain how the process of evolution may result to the formation of a new species.
Date posted: May 23, 2019. Answers (1)
- a) Identify the type of respiration illustrated in the equation above.
b) Explain why lactic acid was not produced in the reaction illustrated in the...(Solved)
a) Identify the type of respiration illustrated in the equation above.
b) Explain why lactic acid was not produced in the reaction illustrated in the equation above.
Date posted: May 23, 2019. Answers (1)
- An experiment was set up as shown in the diagram below.
The set up was left was 30 minutes.
a) State the expected results from the starch...(Solved)
An experiment was set up as shown in the diagram below.
The set up was left was 30 minutes.
a) State the expected results from the starch solution.
b) Explain your answer in (a) above
Date posted: May 23, 2019. Answers (1)
- State the role of glycogen in the human body.(Solved)
State the role of glycogen in the human body.
Date posted: May 23, 2019. Answers (1)
- State the type of response exhibited by the following:
a) Sperm cell as its swims towards the ovum.
b) Feeding in insectivorous plant.(Solved)
State the type of response exhibited by the following:
a) Sperm cell as its swims towards the ovum.
b) Feeding in insectivorous plant.
Date posted: May 23, 2019. Answers (1)
- State two processes which occur during prophase 1 of meiosis.(Solved)
State two processes which occur during prophase 1 of meiosis.
Date posted: May 23, 2019. Answers (1)
- State the role of vitamin A in humans.(Solved)
State the role of vitamin A in humans.
Date posted: May 23, 2019. Answers (1)
- Give a reason why red blood cells have no nucleus.(Solved)
Give a reason why red blood cells have no nucleus.
Date posted: May 23, 2019. Answers (1)
- Name two forms in which carbon (IV) oxide is transported in blood.(Solved)
Name two forms in which carbon (IV) oxide is transported in blood.
Date posted: May 23, 2019. Answers (1)
- Name the class to which the tick belongs.(Solved)
Name the class to which the tick belongs.
Date posted: May 23, 2019. Answers (1)
- The diagram below represents a cell organelle.
a) Name the part labelled B.
b) State the function of the part labelled A.(Solved)
The diagram below represents a cell organelle.
a) Name the part labelled B.
b) State the function of the part labelled A.
Date posted: May 23, 2019. Answers (1)
- Study the photograph below. The specimen had been placed in adequate light at a horizontal position for one week.
i) What was the aim of this...(Solved)
Study the photograph below. The specimen had been placed in adequate light at a horizontal position for one week.
i) What was the aim of this experiment?
ii) What would be the result if seedling is placed on a working klinostat?
iii) Explain how the results at the point shown by the arrow occurred.
Date posted: May 23, 2019. Answers (1)
- Study the photography below to enables you answer the questions that follow.
i) What was the aim of the experiment?
ii) Suggest a control experiment for...(Solved)
Study the photography below to enables you answer the questions that follow.
i) What was the aim of the experiment?
ii) Suggest a control experiment for this set up.
iii) Explain the mechanism of response shown in the photograph.
Date posted: May 23, 2019. Answers (1)
- Below are drawings of some organisms belonging to the same phylum. Examine them carefully.
a) i) Name the phylum to which the organism represented by the...(Solved)
Below are drawings of some organisms belonging to the same phylum. Examine them carefully.
a) i) Name the phylum to which the organism represented by the drawings belong.
ii) Give two reasons for answer in a(i) above.
b) Using the features in the order given below, construct a dichotomous key that can be used to identify the specimens.
- Presence or absence of wings.
- Shape of the body
- Length of antennae
- Type of wings
- Number of wings.
Date posted: May 23, 2019. Answers (1)
- Describe the adaptations of the following components of blood to its functions.
i) Red blood cell.
ii) White blood cells(Solved)
Describe the adaptations of the following components of blood to its functions.
i) Red blood cell.
ii) White blood cells
Date posted: May 23, 2019. Answers (1)