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a). Chitin
b). Lignin
sharon kalunda answered the question on May 27, 2019 at 06:16
- Name two enzymes and one ion metal that are needed in the blood clotting process.(Solved)
Name two enzymes and one ion metal that are needed in the blood clotting process.
Date posted: May 27, 2019. Answers (1)
- What is the role of Cotyledons in a germinating seed.(Solved)
What is the role of Cotyledons in a germinating seed.
Date posted: May 27, 2019. Answers (1)
- A student set up an experiment as shown in the diagram below.
(i)What was being investigated in the experiment?
ii.Draw a diagram to indicate the expected...(Solved)
A student set up an experiment as shown in the diagram below.
(i)What was being investigated in the experiment?
ii.Draw a diagram to indicate the expected results of the experiment after three days.
iii.Why was it necessary to have wet cotton wool in the container.
Date posted: May 27, 2019. Answers (1)
- Identify the structure of the cell that perform the following functions:
a) Synthesize ribosomes
b) Regulate exchange of substance in and out of the nuclear....(Solved)
Identify the structure of the cell that perform the following functions:
a) Synthesize ribosomes
b) Regulate exchange of substance in and out of the nuclear.
c) Division of cells to form new ones.
Date posted: May 27, 2019. Answers (1)
- Name one function of
a) Progesterone
b) Luteinizing hormone(Solved)
Name one function of
a) Progesterone
b) Luteinizing hormone
Date posted: May 27, 2019. Answers (1)
- A certain animal has no incisor, no canines, 6 premolars and 6 molar in its upper jaw. In the lower jaw there are 6 incisors,...(Solved)
A certain animal has no incisor, no canines, 6 premolars and 6 molar in its upper jaw. In the lower jaw there are 6 incisors, 2 canines, 6 premolars and 6 molars. Write its dental formula
Date posted: May 27, 2019. Answers (1)
- Explain what leads to struggle for existence in organisms.(Solved)
Explain what leads to struggle for existence in organisms.
Date posted: May 27, 2019. Answers (1)
- Name joints formed between the
a) Humerus and scapula
b) Cranial bones(Solved)
Name joints formed between the
a) Humerus and scapula
b) Cranial bones
Date posted: May 27, 2019. Answers (1)
- The diagram below show a respiratory structure of a bony fish
a) Name the parts labeled A, B and C
b) What is the advantage of...(Solved)
The diagram below show a respiratory structure of a bony fish
a) Name the parts labeled A, B and C
b) What is the advantage of counter current flow system in fish over the parallel flow?
c) How is the part labeled A adapted to its function
Date posted: May 27, 2019. Answers (1)
- A group of students set up an experiment to demonstrate a certain process as shown below.
After 10 minutes the students carried out iodine test inside...(Solved)
A group of students set up an experiment to demonstrate a certain process as shown below.
After 10 minutes the students carried out iodine test inside and outside the visiking tubing.
a) state two roles of the process being investigated in animals.
b) account for the results expected in the experiment above.
c)i) What is the importance of plasma membrane in active transport.
ii) Give one similarity between osmosis and active transport.
Date posted: May 27, 2019. Answers (1)
- Name the plant organs in which meiosis take place(Solved)
Name the plant organs in which meiosis take place
Date posted: May 27, 2019. Answers (1)
- Haemophilia is a genetic condition transmitted through a recessive gene linked to X chromosome. The normal gene may
be represented by XH
i) What is the genotype...(Solved)
Haemophilia is a genetic condition transmitted through a recessive gene linked to X chromosome. The normal gene may
be represented by XH
i) What is the genotype of the haemophilic female?.
ii) A woman who is a carrier for the haemophilia gene marries a normal man. Work out the phenotypic ratio for their
offspring.
iii) Haemophilia is more common in males than in females. Explain this phenomenon.
Date posted: May 27, 2019. Answers (1)
- The diagram below is a functional unit of a mammalian kidney
a) Name the process that occurs in
L
P
b) (i) state the structural difference between K...(Solved)
The diagram below is a functional unit of a mammalian kidney
b) Name the process that occurs in
L
P
b) (i) state the structural difference between K and M
(ii)How does the structural difference above help in the process that occurs in L
Date posted: May 27, 2019. Answers (1)
- Name the parts of a mammalian ear which carry out the following function (i) balance and posture (ii) hearing(Solved)
Name the parts of a mammalian ear which carry out the following function
i) balance and posture
ii) hearing
Date posted: May 24, 2019. Answers (1)
- A boy could clearly read a book placed 10cm away but could not identify his friend 10 metres away
a) What eye defect was he suffering...(Solved)
A boy could clearly read a book placed 10cm away but could not identify his friend 10 metres away
a) What eye defect was he suffering from)
b) State how the defect can be corrected
Date posted: May 24, 2019. Answers (1)
- The diagram represents a stage of growth and development of two different plants
With reasons identify the types of germination shown by Plant A and B(Solved)
The diagram represents a stage of growth and development of two different plants
With reasons identify the types of germination shown by Plant A and B
Date posted: May 24, 2019. Answers (1)
- What is meant by the following terms
a) Habitat
b) Biomass(Solved)
What is meant by the following terms
a) Habitat
b) Biomass
Date posted: May 24, 2019. Answers (1)
- The number and distribution of stomata of three different leaves are shown in the table below
Suggest the possible habitat of the plant from which the...(Solved)
The number and distribution of stomata of three different leaves are shown in the table below
Suggest the possible habitat of the plant from which the leaves were obtained
A
B
Date posted: May 24, 2019. Answers (1)
- Name the blood vessel that connects arteries to veins(Solved)
Name the blood vessel that connects arteries to veins
Date posted: May 24, 2019. Answers (1)
- Name the organelles that would be most likely found in large numbers in cells that perform the functions below.
a) A cell in the ileum that...(Solved)
Name the organelles that would be most likely found in large numbers in cells that perform the functions below.
a) A cell in the ileum that actively takes in glucose
b) A cell in the liver that breaks down foreign bodies
Date posted: May 24, 2019. Answers (1)