Two biotic factors that affect population are:
(1) Animals
(2) Microbes.
Two abiotic factors that affect population growth are:
(1) Rainfall
(2) Wind
(3) Temperature
(4) Humidity
(5) Soil acidity or alkalinity
(6) Altitude.
raphael answered the question on April 14, 2018 at 07:06
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People in the tropics tend to be thin and tall compared to those in the Arctic regions who tend to be short and plump.Account for...
(Solved)
People in the tropics tend to be thin and tall compared to those in the Arctic regions who tend to be short and plump.Account for these observations in relation to body temperature regulation
Date posted:
April 14, 2018
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Answers (1)
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Describe two methods each for (i)improving crop yield (ii)Preserving and storing food.Explain the Principle involved in each of the methods described
(Solved)
Describe two methods each for
(i)improving crop yield
(ii)Preserving and storing food.Explain the
Principle involved in each of the methods described
Date posted:
April 13, 2018
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Answers (1)
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Define the term genetics
(Solved)
Define the term genetics.
Date posted:
April 13, 2018
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Answers (1)
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Give the main characteristics of leukemia and anaemia
(Solved)
Give the main characteristics of leukemia and anaemia
Date posted:
April 13, 2018
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Answers (1)
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List one example of invasive species in Kenya under the following stating its scientific name accordingly:
a)An example of a flora.
b)An example of a fauna.
(Solved)
List one example of invasive species in Kenya under the following stating its scientific name:
a)An example of a flora.
b)An example of a fauna.
Date posted:
April 12, 2018
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Answers (1)
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Explain five effects caused by introduction of invasive species in a self regulating ecosystem.
(Solved)
Explain five effects caused by introduction of invasive species in a self regulating ecosystem.
Date posted:
April 12, 2018
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Answers (1)
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Outline twelve intentional release practices that cause introduction of invasive species in an ecosystem.
(Solved)
Outline twelve intentional release practices that cause introduction of invasive species in an ecosystem.
Date posted:
April 12, 2018
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Answers (1)
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Describe briefly the ten per cent rule of the introduction of invasive species in an ecosystem.
(Solved)
Describe briefly the ten per cent rule of the introduction of invasive species in an ecosystem.
Date posted:
April 12, 2018
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Answers (1)
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Define the following terms as used in biology;
a)Feral.
b)Human commensurable.
c)Invasive species.
d)Native.
e)Alien species.
(Solved)
Define the following terms as used in biology;
a)Feral.
b)Human commensurable.
c)Invasive species.
d)Native.
e)Alien species.
Date posted:
April 12, 2018
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Answers (1)
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What osmoregulatory changes would take place in a marine amoeba if it was transferred to a fresh water environment?
(Solved)
What osmoregulatory changes would take place in a marine amoeba if it was transferred to a fresh water environment?
Date posted:
April 12, 2018
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Answers (1)
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Name the specific part of the brain that triggers sweating
(Solved)
Name the specific part of the brain that triggers sweating
Date posted:
April 12, 2018
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Answers (1)
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In an experiment a piece of brain was removed from a rat, it was found that the rat had large fluctuations of body temperature. Suggest the part...
(Solved)
In an experiment a piece of brain was removed from a rat, it was found that the rat had large fluctuations of body temperature. Suggest the part of the brain that had been removed.
Date posted:
April 12, 2018
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Answers (1)
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Name a structure in veins which is not found in other blood vessels that adapts them to their function
(Solved)
Name a structure in veins which is not found in other blood vessels that adapts them to their function
Date posted:
April 11, 2018
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Answers (1)
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Name the cell organelles that would be abundant in white cell destroying pathogens, palisade mesophyll cells and skeletal muscle cells
(Solved)
Name the cell organelles that would be abundant in white cell destroying pathogens, palisade mesophyll cells and skeletal muscle cells.
Date posted:
April 11, 2018
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Answers (1)
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State the importance of diffusion in plants
(Solved)
Significance of diffusion to plant life
Date posted:
April 10, 2018
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Answers (1)
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(a)State four modes of nutrition in plants. (b)Outline the process involved in the light and dark reactions of photosynthesis
(Solved)
(a)State four modes of nutrition in plants.
(b)Outline the process involved in the light and dark reactions of photosynthesis
(c)Describe briefly the modifications and mechanism associated with the following habits
i. filter feeding in mosquito larva
ii. parasitic feeding in tapeworm
Date posted:
April 10, 2018
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Answers (1)
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What is the importance of diffusion to plants and animals?
(Solved)
What is the importance of diffusion to plants and animals?
Date posted:
April 10, 2018
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Answers (1)
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Explain how the following tissues are adapted to provide mechanical support in plants (a) Parenchyma (b) Collenchyma
(Solved)
Explain how the following tissues are adapted to provide mechanical support in plants
a) Parenchyma
b) Collenchyma
Date posted:
April 10, 2018
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Answers (1)
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Explain the difference in the condition of the red blood cell and onion cell after treatment (distilled water)
(Solved)
Explain the difference in the condition of the red blood cell and onion cell after treatment (distilled water)
Date posted:
April 9, 2018
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Answers (1)
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What do you understand PCR to be?
(Solved)
What do you understand PCR to be?
Date posted:
April 6, 2018
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Answers (1)