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Organisms that are better adapted to their environment compete favourably;reach sexual maturity/reproduce;and pass their trait to their progeny while less adapted ones don't.They die before they reproduce.
Belan answered the question on March 10, 2019 at 09:26
- State the structures for gaseous exchange in the following organisms:
(i)Amoeba.
(ii)Butterfly.(Solved)
State the structures for gaseous exchange in the following organisms:
(i)Amoeba.
(ii)Butterfly.
Date posted: March 10, 2019. Answers (1)
- Distinguish between excretion and homeostasis.(Solved)
Distinguish between excretion and homeostasis.
Date posted: March 10, 2019. Answers (1)
- The population of fish pond in a pond was estimated using capture-recapture method.
(i)What equipment was used?
(ii)Describe the procedure used in the experiment.
(iii)State the formula...(Solved)
The population of fish in a pond was estimated using capture-recapture method.
(i)What equipment was used?
(ii)Describe the procedure used in the experiment.
(iii)State the formula for calculating the total population of fish in the pond.
Date posted: March 10, 2019. Answers (1)
- (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)