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(i)A-Trachea
B -pulmonary artery
C-Alveolus
(ii)The alveoli contains moisture to ensure maximum oxygen gas dissolves
The alveoli and the blood capillaries are made of thin walls to shorten the distance of respiratory
gases diffusion
The alveoli are numerous to maximum gaseous exchange
(iii)Carbon (IV) oxide
isaacmuthini answered the question on November 20, 2017 at 13:50
- The diagram shows a stage of mitosis(Solved)
The diagram shows a stage of mitosis
(a)Name A and B
(b)What is happening during this stage of mitosis
(c)How many cells are formed when a cell divides by mitosis?
(d)For what purpose do a single-celled organisms use mitosis
Date posted: November 20, 2017. Answers (1)
- The diagram below shows a pyramid of numbers
(Solved)
The diagram below shows a pyramid of numbers
Name the trophic levels A,B and C in the pyramid of numbers.
Date posted: November 20, 2017. Answers (1)
- The diagram below shows the internal structure of a leaf(Solved)
The diagram below shows the internal structure of a leaf
(i)Name the one tissue type that is found at both W and X
(b)The cell at W contains many organelles that carry out photosynthesis.
Suggest why the cells at W contain more of these organelles than the cells at cells at X
(c)In layer X,gases can diffuse throughout the leaf.Name one such gas
(d)State one function of the opening at Z
Date posted: November 20, 2017. Answers (1)
- What is a test cross?(Solved)
What is a test cross?
Date posted: November 20, 2017. Answers (1)
- The diagram below shows a section through human skin(Solved)
The diagram below shows a section through human skin
(i)Name the parts labelled A,B and C
(ii)The skin is one of the excretory organs in humans
name one substance excreted by the skin
(iii)List two other functions of the skin
Date posted: November 20, 2017. Answers (1)
- The diagram below represents a transverse section through part of a plant(Solved)
The diagram below represents a transverse section through part of a plant
(a)Does the diagram represent a root or a stem?
(b)The letters A,B,C in the diagram,represent three different tissue types.Match each letter with its
correct tissue type in the following list
-Ground tissue
-Epidermal tissue
-Vascular tissue
(c)State a function of vascular tissue
(d)Name the two types of vascular tissue in plants
Date posted: November 20, 2017. Answers (1)
- Amoeba is a tiny ,one-celled organism.This diagram below shows the structure of a fresh water Amoeba as seen through a light microscope (Solved)
Amoeba is a tiny ,one-celled organism.This diagram below shows the structure of a fresh water Amoeba as seen through a light microscope
(a)Name parts labelled A,C and D on the diagram
(b)state:-One function of part A
-One function of part C
Date posted: November 20, 2017. Answers (1)
- The diagram below shows a feeding relationship in an ecosystem.Study it and answer the questions that follow.(Solved)
The diagram below shows a feeding relationship in an ecosystem.Study it and answer the questions that follow.
(a)Name the organisms through which natural energy enters the ecosystem
(b)In what trophic level are the leopards?
(c)What would be the short term effect of introducing caterpillars and locust in the ecosystem?
Date posted: November 20, 2017. Answers (1)
- (a) Which taxon has the largest number of members.(b) Outline two physical features that make man and apes very different. (Solved)
(a) Which taxon has the largest number of members.
(b) Outline two physical features that make man and apes very different.
Date posted: November 18, 2017. Answers (1)
- Study the diagram below and answer the questions that follow (Solved)
Study the diagram below and answer the questions that follow
(i)Name cells A and B
(ii)Name two ways in which cell B is adapted to its function
Date posted: November 18, 2017. Answers (1)
- State the theories explaining the origin of HIV/AIDS(Solved)
State the theories explaining the origin of HIV/AIDS
Date posted: November 18, 2017. Answers (1)
- The diagram below represents a neurone .Use it to answer questions that follow.(Solved)
The diagram below represents a neurone .Use it to answer questions that follow.
(a)Identify the neurone.
(b)Using an arrow ,show the direction of impulse.
(c)Name the parts labeled
(i)Q………………………………………………..
(ii)P……………………………………………………
(iii)S…………………………………………………….
(d)Name the neurotransimitter substance released at part S
(e)Identify the damaged parts of the brain that would exhibit the following symptoms.
(i)Loss memory
(ii)Inability to maintain proper body balance and posture
Date posted: November 18, 2017. Answers (1)
- Use the photograph of mammalian digestive system and associated organs to answer the questions that follow.(Solved)
Use the photograph of mammalian digestive system and associated organs to answer the questions that follow.
(i)Name the structures marked A,R,K and T
A……………………………………………….
R…………………………………………..
k……………………………………………………..
T…………………………………………………………..
(ii)Name an acid found on structure labelled K.
(iii)Name the juice stored in the structure labelled B and give its function
Juice…………………….
Function…………………………………………..
Date posted: November 18, 2017. Answers (1)
- Examine the drawings of the organisms shown below.(Solved)
Examine the drawings of the organisms shown below.
(a)construct a dichotomous key that can be used to distinguish the organisms using the following observable features only
(i)Wings
(ii)pair of antennae
(iii)legs per segment
Give two distinguishing features common to the organisms shown above in (a)
Date posted: November 18, 2017. Answers (1)
- Study the vertebra diagram below and then answer the questions that follow.(Solved)
Study the vertebra diagram below and then answer the questions that follow.
(a)(i)What is the identity of vertebra?
(ii) Identify the view presented by the diagram
(b)Label the parts shown as;
(i) J……………………………………………..
(ii) K………………………………………………
(iii) L………………………………………………….
( c) Name the vertebra that
(i)Anteriorly articulates the part K………………………………………………
(ii)Posteriorly articulates with part L……………………………….
(d)Name the resulting movement attained by the articulation referred to in c (i)
Date posted: November 18, 2017. Answers (1)
- (a) Which taxon has the largest number of members. (b) Outline two physical features that make man and apes very different(Solved)
(a) Which taxon has the largest number of members.
(b) Outline two physical features that make man and apes very different
Date posted: November 17, 2017. Answers (1)
- Explain how temperature affects enzymatic reactions.(Solved)
Explain how temperature affects enzymatic reactions.
Date posted: November 17, 2017. Answers (1)
- Give two reasons why lipids are not suitable respiratory substrates(Solved)
Give two reasons why lipids are not suitable respiratory substrates
Date posted: November 17, 2017. Answers (1)
- Name the respiratory surface in the following organisms: (a)Locust (b)Amoeba (c)Tilapia (d)Human beings(Solved)
Name the respiratory surface in the following organisms:
a)Locust
b)Amoeba
c)Tilapia
d)Human beings
Date posted: November 17, 2017. Answers (1)
- The organism below is found in kingdom fungi(Solved)
The organism below is found in kingdom fungi
(a)Using structures X and Y only,why does the organism not qualify as a plant
(b)What division does the moss and liverwort belong to in kingdom plantae?
Date posted: November 16, 2017. Answers (1)