(1) - K - Ulna,
L - Humerus
(ii) Movement of the lower arm takes place at the elbow which is between ulna and the humerous muscles. Involves are biceps and triceps which operate as a pair and their function is antagonistic. When the biceps/ flexor muscles contract, triceps/ extensor muscles relax. This pulls ulna and radius upward, thereby bending the arm or bringing the lower arm upward.
johnmulu answered the question on May 26, 2017 at 05:31
-
State the difference between ball and socket and hinge joint
(Solved)
State the difference between ball and socket and hinge joint
Date posted:
May 25, 2017
.
Answers (1)
-
Name three types of skeletons found in multicellular animals.
(Solved)
Name three types of skeletons found in multicellular animals.
Date posted:
May 25, 2017
.
Answers (1)
-
State three structural differences between biceps and muscles of the gut.
(Solved)
State three structural differences between biceps and muscles of the gut.
Date posted:
May 24, 2017
.
Answers (1)
-
State three ways in which support is brought about in a leaf.
(Solved)
State three ways in which support is brought about in a leaf.
Date posted:
May 24, 2017
.
Answers (1)
-
State three ways by which plants compensate for lack of ability to move from one place to another.
(Solved)
State three ways by which plants compensate for lack of ability to move from one place to another.
Date posted:
May 24, 2017
.
Answers (1)
-
What makes young herbaceous plant remain upright?
(Solved)
What makes young herbaceous plant remain upright?
Date posted:
May 24, 2017
.
Answers (1)
-
State the importance of tactic response among some members of kingdom protista.
(Solved)
State the importance of tactic response among some members of kingdom protista.
Date posted:
May 24, 2017
.
Answers (1)
-
The diagram below represents the transverse section of the spinal cord.
(Solved)
The diagram below represents the transverse section of the spinal cord.
(a) Name the part labelled H.
(b) State two functions of the fluid found in the parts labelled J.
(c) Give a reason for the colour of white matter.
Date posted:
May 24, 2017
.
Answers (1)
-
The diagram illustrates a nerve cell.
(Solved)
The diagram illustrates a nerve cell.
(a) Name the type of nerve cell illustrated.
(b) Give a reason for your answer in (a) above
(c) Identify the part labelled J
Date posted:
May 24, 2017
.
Answers (1)
-
State three differences between tactic and tropic responses.
(Solved)
State three differences between tactic and tropic responses.
Date posted:
May 24, 2017
.
Answers (1)
-
The diagram below shows how the iris and pupil of a human eye appear under different conditions.
(Solved)
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 leads to the appearance of the iris and pupil as shown in the diagram labeled B.
(iii) What is the s
Date posted:
May 24, 2017
.
Answers (1)
-
(a) Where in the human body are relay neurons found
(b) The diagram below represents a neurone
(Solved)
(a) Where in the human body are relay neurons found
(b) The diagram below represents a neurone
(i) Name the neurone
(ii) Name the parts labeled P and Q
(c) State a function of myelin sheath
Date posted:
May 24, 2017
.
Answers (1)
-
State the importance of tactic response among some members of kingdom protista.
(Solved)
State the importance of tactic response among some members of kingdom protista.
Date posted:
May 24, 2017
.
Answers (1)
-
The diagram below shows surface view of a human brain.
(Solved)
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.
Date posted:
May 19, 2017
.
Answers (1)
-
In an experiment to investigate a plant response, the set up shown in the diagram below was used.
(Solved)
In an experiment to investigate a plant response, the set up shown in the diagram below was used.
(a) Name the type of response that was being investigated.
(b) If the Klinostat was not rotating:
(i) State the observations that would be made on the seedlings after three days;
(ii) Explain the observations in (b)(i) above.
(c) If the experiment was repeated with the Klinostat roting:
(i) State the observation that was made on the seedlings after three days;
(ii) Give a reason for the observation made on the seedlings
Date posted:
May 19, 2017
.
Answers (1)
-
The diagram below illustrates a response by a certain plant.
(Solved)
The diagram below illustrates a response by a certain plant.
(a) Name the type of response.
(b) Explain how the response illustrated above occurs.
Date posted:
May 19, 2017
.
Answers (1)
-
State one survival value for each of the following plants:
(a) Thigmotropism in stems;
(b) Geotropism in roots
(Solved)
State one survival value for each of the following plants:
(a) Thigmotropism in stems;
(b) Geotropism in roots
Date posted:
May 19, 2017
.
Answers (1)
-
A response exhibited by a certain plant tendril is illustrated below
(Solved)
A response exhibited by a certain plant tendril is illustrated below
(a) (i) Name the type of response
(ii) Explain how the response named in (a)(i) above occurs
(b) What is the importance of tactic response to microscopic plants?
Date posted:
May 19, 2017
.
Answers (1)
-
During a lesson, students observed the structure of bat, cat and human forelimbs to determine their evolution relationship.
(Solved)
During a lesson, students observed the structure of bat, cat and human forelimbs to determine their evolution relationship.
(a) State the name given to the structure of the limbs observed by the students.
(b) Name the type of evolution illustrated by the structure of the limbs observed.
(c) What evidence of evolution is illustrated by the limbs?
(d) State the significance of the type of evolution illustrated by the limbs.
Date posted:
May 19, 2017
.
Answers (1)
-
State two advantages of natural selection to organisms.
(Solved)
State two advantages of natural selection to organisms.
Date posted:
May 13, 2017
.
Answers (1)