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1.   What is meant by the term irritability? (Answered)
What is meant by the term irritability? .
Posted On:Tue 26, April 2022 20:16:39 pm
2.   State the importance of negative phototaxis to termites. (Answered)
State the importance of negative phototaxis to termites. .
Posted On:Tue 26, April 2022 20:16:04 pm
3.   Describe how accommodation in the the human eye is brought about when focusing on a near object (Answered)
Describe how accommodation in the the human eye is brought about when focusing on a near object .
Posted On:Tue 26, April 2022 20:15:24 pm
4.   The diagram below represents a section of the human brain. (i) Name the structure labeled P and R ii) State two functions of the part labeled Q (Answered)
The diagram below represents a section of the human brain. (i) Name the structure labeled P and R ii) State two functions of the part labeled Q .
Posted On:Tue 26, April 2022 20:13:43 pm
5.   The diagram below shows how the iris and pupil of a human eye appear under different conditions. (a) Name the structures labeled X and Y (b) (i) State the condition that leads to the change in appearance shown in the diagram labeled B (ii) Describe the changes that lead to the appearance of the iris and pupil as shown in the diagram labeled B (iii) What is the significance of the changes described (Answered)
The diagram below shows how the iris and pupil of a human eye appear under different conditions. (a) Name the structures labeled X and Y (b) (i) State the condition that leads to the change in appearance shown in the diagram labeled B (ii) Describe the changes that lead to the appearance of the iris and pupil as shown in the diagram labeled B (iii) What is the significance of the changes described .
Posted On:Tue 26, April 2022 20:10:20 pm
6.   State one function for each of the following (a) Cerebellum (b) Medulla oblongata (Answered)
State one function for each of the following (a) Cerebellum (b) Medulla oblongata .
Posted On:Tue 26, April 2022 20:06:37 pm
7.   Explain why images that form on the blind spot are not perceived (Answered)
Explain why images that form on the blind spot are not perceived .
Posted On:Tue 26, April 2022 20:04:20 pm
8.   How does the human eye obtain nutrients (Answered)
How does the human eye obtain nutrients .
Posted On:Tue 26, April 2022 20:03:34 pm
9.   Explain the changes that take place in the pupil and iris of a human eye when a person moves from a dark room to a room with bright light (Answered)
Explain the changes that take place in the pupil and iris of a human eye when a person moves from a dark room to a room with bright light .
Posted On:Tue 26, April 2022 20:02:20 pm
10.   State two characteristics of the image formed on the retina (Answered)
State two characteristics of the image formed on the retina .
Posted On:Tue 26, April 2022 20:01:26 pm
11.   Name the part of retina where image is formed (Answered)
Name the part of retina where image is formed .
Posted On:Tue 26, April 2022 20:00:51 pm
12.   Describe the structure and functions of the various parts of the human ear. (Answered)
Describe the structure and functions of the various parts of the human ear. .
Posted On:Tue 26, April 2022 20:00:07 pm
13.   Where in the human body are relay neurons found. (Answered)
Where in the human body are relay neurons found. .
Posted On:Tue 26, April 2022 19:57:40 pm
14.   The diagram below represents a reflex arc in human. (a) Name the part labeled X and Y b) Name the substance that is responsible for the transmission of an impulse across the synapse (Answered)
The diagram below represents a reflex arc in human. (a) Name the part labeled X and Y b) Name the substance that is responsible for the transmission of an impulse across the synapse .
Posted On:Tue 26, April 2022 19:51:17 pm
15.   State the importance of tactic response among some members of kingdom protista. (Answered)
State the importance of tactic response among some members of kingdom protista. .
Posted On:Tue 26, April 2022 19:49:09 pm
16.   Apart from hearing, state another function of the human ear (Answered)
Apart from hearing, state another function of the human ear .
Posted On:Tue 26, April 2022 19:47:51 pm
17.   The diagram below shows the position of an image formed in a defective eye. (a) Name the defect b) Explain how the defect named in (a) above can be corrected (Answered)
The diagram below shows the position of an image formed in a defective eye. (a) Name the defect b) Explain how the defect named in (a) above can be corrected .
Posted On:Tue 26, April 2022 19:46:51 pm
18.   Describe the functions of the various parts of the human eye (Answered)
Describe the functions of the various parts of the human eye .
Posted On:Tue 26, April 2022 19:45:01 pm
19.   Describe how semicircular canals performs their functions (Answered)
Describe how semicircular canals performs their functions .
Posted On:Tue 26, April 2022 19:44:04 pm
20.   What is the function of the following parts of the mammalian ear? (i) Tympanic membrane (ii) Eustachian tube (iii) Ear ossicles (Answered)
What is the function of the following parts of the mammalian ear? (i) Tympanic membrane (ii) Eustachian tube (iii) Ear ossicles .
Posted On:Tue 26, April 2022 19:42:29 pm
21.   What is the function of the following cells in the retina of human eye? (a) Cones (b) Rods (Answered)
What is the function of the following cells in the retina of human eye? (a) Cones (b) Rods .
Posted On:Tue 26, April 2022 19:40:33 pm
22.   The diagram below shows surface view of a human brain. (i) Name the parts labeled B and C (ii) State what would happen if the part labeled B was damaged. (Answered)
The diagram below shows surface view of a human brain. (i) Name the parts labeled B and C (ii) State what would happen if the part labeled B was damaged. .
Posted On:Tue 26, April 2022 19:35:56 pm
23.   The diagram below represents a nerve cell. (a) (i) Identify the nerve cell ii) Give a reason for your answer in (a) (i) above (b) Name the structure labeled T (c) Using an arrow indicate on the diagram the direction of movement of an impulse in the cell. (Answered)
The diagram below represents a nerve cell. (a) (i) Identify the nerve cell ii) Give a reason for your answer in (a) (i) above (b) Name the structure labeled T (c) Using an arrow indicate on the diagram the direction of movement of an impulse in the cell. .
Posted On:Tue 26, April 2022 19:32:26 pm
24.   In an experiment it was found that when maggots are exposed to light they move to dark areas. (a) Name the type of response exhibited by the maggots (b) Name the advantages of the response to the maggots (Answered)
In an experiment it was found that when maggots are exposed to light they move to dark areas. (a) Name the type of response exhibited by the maggots (b) Name the advantages of the response to the maggots .
Posted On:Fri 25, March 2022 09:52:49 am
25.   A person was able to read a book clearly at arm’s length but not at normal reading distance. (a) State the defect the person suffered from? (b) Why was he unable to read the book clearly at normal distance? (c) How can the defect be corrected? (Answered)
A person was able to read a book clearly at arm’s length but not at normal reading distance. (a) State the defect the person suffered from? (b) Why was he unable to read the book clearly at normal distance? (c) How can the defect be corrected? .
Posted On:Fri 25, March 2022 09:43:07 am
26.   State two functional differences between the rods and cones in the human eye (Answered)
State two functional differences between the rods and cones in the human eye .
Posted On:Fri 25, March 2022 09:40:27 am
27.   State the function of ciliary muscles in the human eye (Answered)
State the function of ciliary muscles in the human eye .
Posted On:Fri 25, March 2022 09:35:52 am
28.   Describe the location, function and characteristics of three types of muscles in mammalian body. (Answered)
Describe the location, function and characteristics of three types of muscles in mammalian body. .
Posted On:Mon 14, March 2022 12:24:24 pm
29.   How are long bones of limbs suited/ adapted to their function? (Answered)
How are long bones of limbs suited/ adapted to their function? .
Posted On:Mon 14, March 2022 12:21:50 pm
30.   How are the pectoral and pelvic girdles adapted/ suited to their function? (Answered)
How are the pectoral and pelvic girdles adapted/ suited to their function? .
Posted On:Mon 14, March 2022 12:18:55 pm
31.   How are cervical, thoracic, lumbar and sacral vertebrae adapted/ suited to their function? (Answered)
How are cervical, thoracic, lumbar and sacral vertebrae adapted/ suited to their function? .
Posted On:Mon 14, March 2022 12:16:35 pm
32.   Explain/ describe the mechanism of locomotion in finned fish/ How does locomotion occurs in finned fish/ explain/ describe the adaptation of fish to locomotion in its habitat/ water. (Answered)
Explain/ describe the mechanism of locomotion in finned fish/ How does locomotion occurs in finned fish/ explain/ describe the adaptation of fish to locomotion in its habitat/ water. .
Posted On:Mon 14, March 2022 12:13:00 pm
33.   How is the mammalian ear adapted/ suited to its function? (Answered)
How is the mammalian ear adapted/ suited to its function? .
Posted On:Mon 14, March 2022 12:11:07 pm
34.   Describe the process of hearing in mammals. (Answered)
Describe the process of hearing in mammals. .
Posted On:Mon 14, March 2022 12:08:41 pm
35.   Describe the structure and function of various parts of human ear. (Answered)
Describe the structure and function of various parts of human ear. .
Posted On:Mon 14, March 2022 12:07:52 pm
36.   How is the image formed in the eye? (Answered)
How is the image formed in the eye? .
Posted On:Mon 14, March 2022 12:05:39 pm
37.   Explain/ describe how accommodation of the eye is achieved. (Answered)
Explain/ describe how accommodation of the eye is achieved. .
Posted On:Mon 14, March 2022 12:04:32 pm
38.   How is the mammalian eye adapted/ suited to its function? (Answered)
How is the mammalian eye adapted/ suited to its function? .
Posted On:Mon 14, March 2022 12:03:27 pm
39.   A person met a leopard as he walked along the forest path and ran away immediately. Explain how the nervous and adrenal glands worked together to bring about the action observed. (Answered)
A person met a leopard as he walked along the forest path and ran away immediately. Explain how the nervous and adrenal glands worked together to bring about the action observed. .
Posted On:Mon 14, March 2022 11:59:35 am
40.   Using an illustration explain what happens when a person touches a hot flame. (Answered)
Using an illustration explain what happens when a person touches a hot flame. .
Posted On:Mon 14, March 2022 11:57:51 am
41.   Using relevant example, describe/ explain simple and conditioned reflex action. (Answered)
Using relevant example, describe/ explain simple and conditioned reflex action. .
Posted On:Mon 14, March 2022 11:54:00 am
42.   Describe/ explain the roles/ functions of different parts of the mammalian brain. (Answered)
Describe/ explain the roles/ functions of different parts of the mammalian brain. .
Posted On:Mon 14, March 2022 11:52:32 am
43.   Explain the role of auxins in tropisms/ tropic responses. (Answered)
Explain the role of auxins in tropisms/ tropic responses. .
Posted On:Mon 14, March 2022 11:51:32 am
44.   Explain how the process of evolution may lead to formation of a new species/adaptation of species to the environment. (Answered)
Explain how the process of evolution may lead to formation of a new species/adaptation of species to the environment. .
Posted On:Mon 14, March 2022 11:50:32 am
45.   Using examples, explain how natural selection takes place. (Answered)
Using examples, explain how natural selection takes place. .
Posted On:Mon 14, March 2022 11:47:22 am
46.   Using relevant example explain industrial melanism. (Answered)
Using relevant example explain industrial melanism. .
Posted On:Mon 14, March 2022 11:46:22 am
47.   Describe how mutations arise and their significance in evolution. (Answered)
Describe how mutations arise and their significance in evolution. .
Posted On:Mon 14, March 2022 11:45:18 am
48.   How does natural selection lead to emergence of new species? (Answered)
How does natural selection lead to emergence of new species? .
Posted On:Mon 14, March 2022 11:43:57 am
49.   Describe/ explain different evidences that show that evolution took place. (Answered)
Describe/ explain different evidences that show that evolution took place. .
Posted On:Mon 14, March 2022 11:42:46 am
50.   Explain/ describe the general application of genetics. (Answered)
Explain/ describe the general application of genetics. .
Posted On:Mon 14, March 2022 11:40:56 am
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