(i)Fishing net,bucket, means of marking(permanent/waterproof ink tag).
(ii)Capture the fish using a net and place in a bucket with water.
Count and mark each fish using permanent ink or tag.
Record and return/release marked fish back to the pond.
Allow time to pass-3days or more and recapture/catch again.
Count the marked and unmarked fish and record.
(iii)Number of marked and unmarked fish in the second sample multiplied by the number of fish in the first sample;divide by the number of fish marked in the second sample that were recaptured:
FM×SC/MR
FM-First marked.
SC-Second Catch.
MR-Marked recaptured.
Belan answered the question on March 10, 2019 at 09:13
- (a)(i)State two reasons why clot formation is important, when a blood vessel is cut.
(ii)Explain what happens if a clot forms in a blood vessel in...(Solved)
(a)(i)State two reasons why clot formation is important,when a blood vessel is cut.
(ii)Explain what happens if a clot forms in a blood vessel in the head.
(b)State two components of the diet that are needed in blood clotting.
(c)Name two proteins that are involved in clot formation.
Date posted: March 10, 2019. Answers (1)
- Elaborate on how soil nutrient composition affects photosynthesis?(Solved)
Elaborate on how soil nutrient composition affects photosynthesis?
Pay attention to how soil nutrient composition with regard to macro and micro nutrients affects photosynthesis, other factors remaining constant.
Date posted: March 9, 2019. Answers (1)
- State the function of the choroid in the human eye.(Solved)
State the function of the choroid in the human eye.
Date posted: March 8, 2019. Answers (1)
- State two characteristics of living things that are observable in both plants and animals.(Solved)
State two characteristics of living things that are observable in both plants and animals.
Date posted: March 8, 2019. Answers (1)
- Name three structures observed in an animal cell using a light microscope.(Solved)
Name three structures observed in an animal cell using a light microscope.
Date posted: March 8, 2019. Answers (1)
- State three harmful effects of alcohol (ethanol)to human health.(Solved)
State three harmful effects of alcohol (ethanol) to human health.
Date posted: March 8, 2019. Answers (1)
- Name two dental diseases.(Solved)
Name two dental diseases.
Date posted: March 8, 2019. Answers (1)
- State the role of the following hormones.(i)Follicle stimulating hormone.(ii)Progesterone.(Solved)
State the role of the following hormones.
(i)Follicle stimulating hormone.
(ii)Progesterone.
Date posted: March 8, 2019. Answers (1)
- State the function of pleural fluid during breathing in humans(Solved)
State the function of pleural fluid during breathing in humans.
Date posted: March 8, 2019. Answers (1)
- What is the role of fungi in an ecosystem?(Solved)
What is the role of fungi in an ecosystem?
Date posted: March 8, 2019. Answers (1)
- What causes diabetes insipidus?(Solved)
What causes diabetes insipidus?
Date posted: March 8, 2019. Answers (1)
- Name the regions of the mammalian kidney.(Solved)
Name the regions of the mammalian kidney.
Date posted: March 8, 2019. Answers (1)
- (i)Distinguish between passive and active immunity.(ii)What is Acquired Immune Deficiency Syndrome (AIDS)?(Solved)
(i)Distinguish between passive and active immunity.
(ii)What is Acquired Immune Deficiency Syndrome (AIDS)?
Date posted: March 8, 2019. Answers (1)
- Give two reasons why water lily have stomata on the upper epidermis only.(Solved)
Give two reasons why water lily have stomata on the upper epidermis only.
Date posted: March 6, 2019. Answers (1)
- (a)(i)State the function of companion cells.
(ii)Explain why companion cells are located next to the sieve tubes.(Solved)
(a)(i)State the function of companion cells.
(ii)Explain why companion cells are located next to the sieve tubes.
Date posted: March 6, 2019. Answers (1)
- Define the following terms:
(a)Tissue.
(b)Organ system.(Solved)
Define the following terms:
(a)Tissue.
(b)Organ system.
Date posted: March 6, 2019. Answers (1)
- State the method of dispersal for each of the following fruits:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)wind.
(ii)Censor mechanism.(Solved)
(a)State the method of dispersal for each of the following:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for each of the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)Wind.
(ii)Censor mechanism.
Date posted: March 2, 2019. Answers (1)
- An experiment was carried out as follows:
-2cm³of egg white suspension was placed in each test tubes labelled A,B,C and D.
-Three drops of hydrochloric acid(HCI)was added...(Solved)
An experiment was carried out as follows:
-2cm³of egg white suspension was placed in each of the test tubes labelled A,B,C and D.
-Three drops of hydrochloric acid (HCI) was added to each of test tubes labelled B,C and D.
-1cm³pepsin was added to each of test tubes labelled A, and C 1cm³ boiled pepsin to test tube labelled D.
All the test tubes were placed in a water bath at 35°C for 15 minutes.
(a)State the observations made in each of the test tubes labelled A,B,C and D.
(b)Account for the observations made in(a) above for test tubes labelled A,B,C and D.
(c)What was the role of HCI?
Date posted: March 2, 2019. Answers (1)
- What are the advantages of excreting uric acid other than ammonia in a kangaroo rat?(Solved)
What are the advantages of excreting uric acid other than ammonia in a kangaroo rat?
Date posted: March 2, 2019. Answers (1)
- Give two reasons why pressure of blood is greater in arteries than in veins of animals.(Solved)
Give two reasons why pressure of blood is greater in arteries than in veins of animals.
Date posted: March 2, 2019. Answers (1)