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i) Convergent evolution;
ii) Analogous structure;
sharon kalunda answered the question on September 13, 2019 at 07:48
- State the fluids that provide cushion in the following organs(Solved)
State the fluids that provide cushion in the following organs
(a) Lungs
(b) Heart
(c) Knee
(d) Eye ball
Date posted: September 11, 2019. Answers (1)
- The diagram below illustrates a physiological process that occurs in the alimentary canal of man.(Solved)
The diagram below illustrates a physiological process that occurs in the alimentary canal of man.
a) Name the process Q above
b) Explain the biological importance of the above process.
c) Name the substance that helps the process named (a) above.
Date posted: September 11, 2019. Answers (1)
- The diagram below represents a mammalian bone.
a) State the function of the part labeled K and L
b) State the region of the body in...(Solved)
The diagram below represents a mammalian bone.
a) State the function of the part labeled K and L
b) State the region of the body in which the above bone is found.
Date posted: September 11, 2019. Answers (1)
- The following diagram shows a specialized cell.
a) Identify the specialized cell.
b) State the function of the cell named in (a) above.(Solved)
The following diagram shows a specialized cell.
a) Identify the specialized cell.
b) State the function of the cell named in (a) above.
Date posted: September 11, 2019. Answers (1)
- Using well labeled diagrams,describe the process of germination in a bean plant up to when the first stage foliage leaves become functional.(Solved)
Using well labeled diagrams,describe the process of germination in a bean plant up to when the first stage foliage leaves become functional.
Date posted: August 28, 2019. Answers (1)
- The word equation below shows a biological process.(Solved)
The word equation below shows a biological process.
Water-------->Hydrogen atom + oxygen
(i) Name the process.
(ii) Where does the process named in (i) above take place?
(iii) State two conditions necessary for the process to occur.
Date posted: August 22, 2019. Answers (1)
- Giving a reason, state the organisms that are MOST closely related.(Solved)
Giving a reason, state the organisms that are MOST closely related.
Date posted: August 22, 2019. Answers (1)
- What does Canis refer to?(Solved)
What does Canis refer to?
Date posted: August 22, 2019. Answers (1)
- The diagram below shows results of what happens to plant cell when placed in a certain solution.(Solved)
The diagram below shows results of what happens to plant cell when placed in a certain solution.
(i) What was the nature of the solution in which the cell was placed?
(ii) Identify the force represented by the arrow X and explain how it develops.
Date posted: August 22, 2019. Answers (1)
- What is Cytology?(Solved)
What is Cytology?
Date posted: August 22, 2019. Answers (1)
- The photomicrograph below shows some structures of a cell. Study it and answer the questions that follow.(Solved)
The photomicrograph below shows some structures of a cell. Study it and answer the questions that follow.
(a) Identify the organelles represented by:
S:
T:
(b) State the function of S
(c) Name an animal cell from which the photomicrograph above was obtained. Explain your answer.
(d) Work out the actual length of the structure T in micrometers.
Date posted: August 14, 2019. Answers (1)
- The diagram below shows how a seed changes after it is planted in a well-watered soil.(Solved)
The diagram below shows how a seed changes after it is planted in a well-watered soil.
(a) Explain how the part labelled A straightens as shown in the last diagram.
(b) Other than storage of food for germination, state two functions of part B.
Date posted: August 14, 2019. Answers (1)
- The micrographs below is of a tissue showing mitosis. Examine it and answer the questions.(Solved)
The micrographs below is of a tissue showing mitosis. Examine it and answer the questions.
(a) i. Identify the tissue from which the micrographs were obtained
ii. Give a reason for your answer in a) i above
iii.Name the stages represented by R and T.
(b) State two significance of mitosis to an organism.
(c) Name two regions in higher plants where cells actively undergo mitosis.
Date posted: August 14, 2019. Answers (1)
- A red cow was mated with a white bull. All F1 offspring were neither red nor white.Such individuals are said to be roan.(Solved)
A red cow was mated with a white bull. All F1 offspring were neither red nor white.Such individuals are said to be roan.
(a) Using letter R to represent the gene for red colour and W for the gene for white colour. Work out the genotypes of the F1 offspring.
(b) If the F1 offspring were selfed, state the phenotypic and genotypic ratios of the F2 offspring.
(c) State two importance of using plants in genetics experiments.
Date posted: August 14, 2019. Answers (1)
- The diagram below illustrates the structure in the human eye.
(Solved)
The diagram below illustrates the structure in the human eye.
(i) State one way in which the part labelled c is suited to its functions.
(ii) State the functions of the cells in the part labelled D
(iii) State the changes that occur in part A to facilitate vision of a distance object.
Date posted: August 14, 2019. Answers (1)
- A number of industries in Nairobi and Machakos counties have recently been found to direct their effluents into Nairobi River and Athi River respectively. State...(Solved)
A number of industries in Nairobi and Machakos counties have recently been found to direct their effluents into Nairobi River and Athi River respectively. State two effects of each of the following substances present in the industrial effluents.
(a) Lead.
(b) Oils.
Date posted: August 13, 2019. Answers (1)
- Describe the changes that occur in the eye when a person enters a poorly lit room.(Solved)
Describe the changes that occur in the eye when a person enters a poorly lit room.
Date posted: August 13, 2019. Answers (1)
- The diagram below shows a mammalian bone. Use it to answer questions that follow.(Solved)
The diagram below shows a mammalian bone. Use it to answer questions that follow.
(a) With a reason, identify the bone.
Identity:
Reason:
(b) Identify each of the parts labelled:
A:
B:
(c) State the function of the part labelled C.
Date posted: August 13, 2019. Answers (1)
- Below is a diagram of organism of a particular kingdom.(Solved)
Below is a diagram of organism of a particular kingdom.
(a) Identify the kingdom to which it belongs.
(b) Name the parts labelled:
A:
B:
(c) Other than absorption of food state one main role of structure labelled C.
Date posted: August 13, 2019. Answers (1)
- In an experiment, some germinating seeds were placed in a large air tight flask and left for 3 days.(Solved)
In an experiment, some germinating seeds were placed in a large air tight flask and left for 3 days. What are the expected changes in composition of air inside the flask?
Date posted: August 13, 2019. Answers (1)