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Auxiliary buds / buds; scale leaves’ lenticels
Kavungya answered the question on September 30, 2019 at 12:36
- An organism can be used to control the population of a pest or disease causative organism.
a) Name the method described.
b) State the advantage of the...(Solved)
An organism can be used to control the population of a pest or disease causative organism.
a) Name the method described.
b) State the advantage of the method named in (a) above.
Date posted: September 30, 2019. Answers (1)
- Name the process which occurs in root hair cells that lead to absorption of water.(Solved)
Name the process which occurs in root hair cells that lead to absorption of water.
Date posted: September 30, 2019. Answers (1)
- Describe the digestion of a piece of beef rich in fat in human digestive system from
the mouth until it is absorbed in the blood stream.(Solved)
Describe the digestion of a piece of beef rich in fat in human digestive system from
the mouth until it is absorbed in the blood stream.
Date posted: September 30, 2019. Answers (1)
- Describe how various endo-parasites are adapted for survival in their hosts.(Solved)
Describe how various endo-parasites are adapted for survival in their hosts.
Date posted: September 30, 2019. Answers (1)
- Giving examples differentiate between ecto-parasites and endo-parasites.(Solved)
Giving examples differentiate between ecto-parasites and endo-parasites.
Date posted: September 30, 2019. Answers (1)
- Quantity of Urine passed per day was established in five mammals A, B, C, D and E of the same species in their natural habitats....(Solved)
Quantity of Urine passed per day was established in five mammals A, B, C, D and E of the same species in their natural habitats. The results are shown below.
(i) Which of the five Mammals was likely to be excreting Urine very rich in ammonia? Give a reason.
(ii) Which of the five mammals was likely to be living in a desert? Give a reason.
(iii) State two structural differences expected in the nephrons of mammals And D.
(iv) State how antidiuretic hormone (ADH) affect the amount of Urine produced by a mammal per day.
Date posted: September 30, 2019. Answers (1)
- How is High pressure achieved in the kidney?(Solved)
How is High pressure achieved in the kidney?
Date posted: September 30, 2019. Answers (1)
- State the principal requirement of filtration that forms glomeruli filtrate.(Solved)
State the principal requirement of filtration that forms glomeruli filtrate.
Date posted: September 30, 2019. Answers (1)
- In an investigation, the appropriate composition of plasma, glomerula filtrate and urine in a mammal was determined. The results were as shown on the table.
(a)...(Solved)
In an investigation, the appropriate composition of plasma, glomerula filtrate and urine in a mammal was determined. The results were as shown on the table.
(a) Account for the absence of;
(i) Plasma protein in glomerula filtrate.
(ii) Glucose and amino acids in urine.
(b) (i) From the above results, identify two types of wastes eliminated from mammalian
blood.
(ii) Other than excretion, give one other function of the mammalian kidney.
Date posted: September 30, 2019. Answers (1)
- State the advantages of the cell protoplasm being colloidal in nature.(Solved)
State the advantages of the cell protoplasm being colloidal in nature.
Date posted: September 30, 2019. Answers (1)
- State two ways by which mammalian blood carry out homeostasis function.(Solved)
State two ways by which mammalian blood carry out homeostasis function.
Date posted: September 30, 2019. Answers (1)
- The organelle below is important in the process of Nutrition.(Solved)
The organelle below is important in the process of Nutrition.
a) Identify the organelle
b) Name the parts labeled
c)Name the part where the following stages of photosynthesis occur
d)State the role of light in the processes of photosynthesis
Date posted: September 30, 2019. Answers (1)
- A potential mother of blood group B- requires a blood transfusion before her first pregnancy, what blood group(s) can she receive safely if the husband...(Solved)
A potential mother of blood group B- requires a blood transfusion before her first pregnancy, what blood group(s) can she receive safely if the husband is of Rh+ ve blood. Explain your answer.
Date posted: September 30, 2019. Answers (1)
- Evolutionary changes take place in a population to maintain a balanced community, basing your answer on blood transfusion, explain the role played by nature on...(Solved)
Evolutionary changes take place in a population to maintain a balanced community, basing your answer on blood transfusion, explain the role played by nature on distribution of;
(i) Blood group O
(ii) Blood group AB in the population
Date posted: September 30, 2019. Answers (1)
- The table below shows the approximate distribution of human blood groups in a sample of 100 people in a population.
Calculate the percentage of Rhesus negative...(Solved)
The table below shows the approximate distribution of human blood groups in a sample of 100 people in a population.
Calculate the percentage of Rhesus negative (Rh -) in the whole group of donors.
Date posted: September 30, 2019. Answers (1)
- Differentiate between Chemotropism and Phototropism.(Solved)
Differentiate between Chemotropism and Phototropism.
Date posted: September 30, 2019. Answers (1)
- The diagram shows a white blood cell.
(a) (i) Explain how the bacteria got into the cell.
(ii) What happens to the bacteria once in the...(Solved)
The diagram shows a white blood cell.
(a) (i) Explain how the bacteria got into the cell.
(ii) What happens to the bacteria once in the cell?
(b) (i) Name an animal phylum which exhibit the process that lead to entry of bacteria in
the cell?
(ii) Besides the process described in (a) above, state two ways by which white blood
cell protect the body.
Date posted: September 30, 2019. Answers (1)
- a)Name the principal components of cell membrane.
(b)(i) Why would a cell allow some substances to pass through it but not others?
(ii) Other than the...(Solved)
a)Name the principal components of cell membrane.
(b)(i) Why would a cell allow some substances to pass through it but not others?
(ii) Other than the property of semi- permeability stated in b (i) above, state two other properties of a cell membrane
( c)Explain what would happen to the red blood cells if placed in concentrated salt solution.
Date posted: September 30, 2019. Answers (1)
- Give the function of the following features found in the wall of trachea and bronchi in
a mammal.
(i) Ciliated cells
(ii) Mucus secreting cells(Solved)
Give the function of the following features found in the wall of trachea and bronchi in
a mammal.
(i) Ciliated cells
(ii) Mucus secreting cells
Date posted: September 30, 2019. Answers (1)
- A student estimating a cell size of an onion epidermal cells observed the following on the microscope field of view using a transparent ruler.(Solved)
A student estimating a cell size of an onion epidermal cells observed the following on the microscope field of view using a transparent ruler.
The student identified 20 cells across the field of view. Calculate the size of the cell inMicrometers (show your working)
Date posted: September 30, 2019. Answers (1)