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Has no antibodies to react with the donor’s antigen (causing agglutination)
sharon kalunda answered the question on May 28, 2019 at 13:36
- Explain why Blood group O is a universal donor.(Solved)
Explain why Blood group O is a universal donor.
Date posted: May 28, 2019. Answers (1)
- Below are photographs of specimens obtained from plants. Examine the photographs.
(a) For each of the specimens, name the mode of pollination and the features that...(Solved)
Below are photographs of specimens obtained from plants. Examine the photographs.
(a) For each of the specimens, name the mode of pollination and the features that adapt the spaciments to the mode of pollination.
Specimen R
- Mode of pollination.
- Adaptive features.
Specimen S1
- Mode of pollination.
- Adaptive features.
(b) Label any four parts on specimen R.
(c) Name the structure labeled X on specimen S1.
(d) Using observable features only state two differences between R and S1.
(e) With a reason, name the class of the spermatophyta to which specimen R and S2 belongs.
Specimen R.
Class
Reason
Specimen S2.
Class
Reason
Date posted: May 28, 2019. Answers (1)
- i) Name the fluid which is found in the joint area of two bones.
ii) State the function of the fluid named above.(Solved)
i) Name the fluid which is found in the joint area of two bones.
ii) State the function of the fluid named above.
Date posted: May 28, 2019. Answers (1)
- Use the photographs below to answer the question which follow.
a) Name four types of joints found in the photographs.
b) Name the bones labelled A,...(Solved)
Use the photographs below to answer the question which follow.
a) Name four types of joints found in the photographs.
b) Name the bones labelled A, B and C.
c) Name the cavity where
i) bone B fits into bone A.
ii) bone B fits into bone C and D.
Date posted: May 28, 2019. Answers (1)
- a)Construct a dichotomous key to key out the following organisms using the following steps
Step 1: Body covering
Step 2: Animal with 3pairs of walking limbs or...(Solved)
a)Construct a dichotomous key to key out the following organisms using the following steps
Step 1: Body covering
Step 2: Animal with 3pairs of walking limbs or more
Step 3: Animals with four pairs of legs
Step 4 : Number of walking limbs per segment.
b) With reasons state the class to which the organisms belong.
i) S. gregaria
ii) S. coleopata
Date posted: May 28, 2019. Answers (1)
- State the type of germination exhibited by seedlings in photograph I below. Give reasons.
Type of germination.
Reasons.(Solved)
State the type of germination exhibited by seedlings in photograph I below. Give reasons.
Type of germination.
Reasons.
Date posted: May 28, 2019. Answers (1)
- Use the photographs on plant responses to stimuli to answer the questions that follow.
The photograph shows various phenomena.
(i) Sate the type of response shown, the...(Solved)
Use the photographs on plant responses to stimuli to answer the questions that follow.
The photograph shows various phenomena.
(i) Sate the type of response shown, the seedlings in photograph G..
(ii) Explain the mechanism of the response shown in question (i) above.
(iii) Using observable features only compare the seedlings in photograph G and H.
(iv) State the biological phenomenon shown by seedling in photograph H.
Date posted: May 28, 2019. Answers (1)
- Study the photographs of organs in mammalian circulatory system and answer the questions that follow.
(a) Identify the organ whose photograph appears in 2.1.
(b) Name...(Solved)
Study the photographs of organs in mammalian circulatory system and answer the questions that follow.
(a) Identify the organ whose photograph appears in 2.1.
(b) Name the tissue marked W in the photograph 2.1a and state its function.
Tissue W.
Function.
(c) The photograph 2.1b is a longitudinal section of organs in photograph 2.1a. Observe it and answer the question that follow.
Name the parts marked 1, 2, 3, 4 and 4.
Date posted: May 28, 2019. Answers (1)
- Examine the following diagrams labelled E and F.
With reasons identify E and F
Identify E
Reasons
Identify F
Reasons(Solved)
Examine the following diagrams labelled E and F.
With reasons identify E and F
Identify E
Reasons
Identify F
Reasons
Date posted: May 28, 2019. Answers (1)
- Below are photographs of specimen labelled L and M which were obtained from different animals.
Examine them.
a) Suggest the diet of each of the animals whose...(Solved)
Below are photographs of specimen labelled L and M which were obtained from different animals.
Examine them.
a) Suggest the diet of each of the animals whose skulls are shown in the diagram. Give reasons for your answer.
b) Write the dental formula of the animal whose skull are shown in diagrams L and M.
Date posted: May 28, 2019. Answers (1)
- Study photographs C and D and answer the questions.
i) With a reason state the agent of pollination of each of the flowers.
ii) Classify the animal...(Solved)
Study photographs C and D and answer the questions.
i) With a reason state the agent of pollination of each of the flowers.
ii) Classify the animal in photograph D using the taxonomic units below and reasons for your answer
Taxonomic unit Reason
Phylum
Class
Date posted: May 28, 2019. Answers (1)
- Use the photograph of plant experiment to answer the questions that follow.
i) Name the process being investigated.
ii) Name the plant tissue involved in the...(Solved)
Use the photograph of plant experiment to answer the questions that follow.
i) Name the process being investigated.
ii) Name the plant tissue involved in the physiological process illustrated above.
iii) Name the physiological process involved in the process illustrated above.
iv) How is the plant tissue named in (iii) above adapted to its function.
Date posted: May 28, 2019. Answers (1)
- a)A student from Kegonga used a microscope with X40 objective lens and X5 eye piece lens which had 2mm radius and
counted 5 cells. Calculate the...(Solved)
a)A student from Kegonga used a microscope with X40 objective lens and X5 eye piece lens which had 2mm radius and
counted 5 cells. Calculate the area of the field of view in micrometers.
b) What is the average size of the cell in micrometers?
Date posted: May 28, 2019. Answers (1)
- Name two growth hormones in insects which influence their growth pattern.(Solved)
Name two growth hormones in insects which influence their growth pattern.
Date posted: May 28, 2019. Answers (1)
- The diagrams below shows leaves obtained from five different plants.
Using the key provided identify the plants from which the leaves were obtained in each case...(Solved)
The diagrams below shows leaves obtained from five different plants.
Using the key provided identify the plants from which the leaves were obtained in each case give the sequence of steps in the key which you followed to arrive at the identify.
1 (a) Leaf simple -------------------------------------------------------------- go to 2
(b) Leaf compound ---------------------------------------------------------------- go to 4
2. (a) Leaf with parallel veins------------------------------------------------------- Maize
(b) Leaf with network vein ------------------------------------------------------- go to 3
3. (a) Leaf margin smooth ---------------------------------------------------- Bougainvillea
(b) Leaf margin serrated ---------------------------------------------------------- Hibiscus
4. (a) Leaflets emerging from one stalk like fingers ------------------------ Bombax
(b) Leaflets emerging from several stalk attached to main stalk-------- Acacia
(b) State three differences between the classes from which leaf A and leaf B were obtained from.
Date posted: May 28, 2019. Answers (1)
- In an ecological study a certain insect population and that of predators was estimated in a certain grassland over a period of 1 year (one...(Solved)
In an ecological study a certain insect population and that of predators was estimated in a certain grassland over a period of 1 year (one year).
(a) Using the information above plot on the same axis the graph of number of insects and number of predators against time in months.
(b) Suggest what happens to the insect’s population during dry months.
(c) Explain the relationship between the insect population and that of predators.
(d) Suggest what happens to the predator’s population during dry month.
(e) Name the trophic level occupied by:-
(i) Predator
(ii) Insects
(iii) Grass
(f) Name the method used to estimate population of:
(i) Predator
(ii) Insects
(iii) Grass
Date posted: May 28, 2019. Answers (1)
- What is the function of enzyme Enterokinase?(Solved)
What is the function of enzyme Enterokinase?
Date posted: May 28, 2019. Answers (1)
- Study the equation below and answer the questions that follow.
(a) Name product P.
(b) Name the reaction represented by letter: X and Y(Solved)
Study the equation below and answer the questions that follow.
(a) Name product P.
(b) Name the reaction represented by letter: X and Y
Date posted: May 28, 2019. Answers (1)
- Define a fossil.(Solved)
Define a fossil.
Date posted: May 28, 2019. Answers (1)
- Students set up an experiment as shown below. Use it to answer the questions that follow.
(a) What was the aim of the experiment?
(b) What...(Solved)
Students set up an experiment as shown below. Use it to answer the questions that follow.
(a) What was the aim of the experiment?
(b) What observation would be made in test tube B?
(c) Explain the results in (b) above.
(d) Write word equation for the process of anaerobic respiration in plants.
(e) State four application of anaerobic respiration.
Date posted: May 28, 2019. Answers (1)