Get premium membership and access questions with answers, video lessons as well as revision papers.
10% Rule – Only 10% of introduced exotics will live, due to wrong climate, food availability and other factors of the 10% that live, only 10% will actually breed and become invasive.
jim items answered the question on April 12, 2018 at 15:42
- 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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- State the importance of diffusion in plants (Solved)
Significance of diffusion to plant life
Date posted: April 10, 2018. Answers (1)
- (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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- What do you understand PCR to be?(Solved)
What do you understand PCR to be?
Date posted: April 6, 2018. Answers (1)
- State three characteristics of biomarkers(Solved)
State three characteristics of biomarkers.
Date posted: April 6, 2018. Answers (1)
- Define biomarkers?(Solved)
Define biomarkers?
Date posted: April 6, 2018. Answers (1)
- What three advantages are there in using genetic engineering over traditional biotechnology.(Solved)
What advantages are there in using genetic engineering over traditional biotechnology?
Date posted: April 6, 2018. Answers (1)
- Outline Koch's postulates(Solved)
Koch's postulates are four criteria used to establish the relationship between the causative agent and disease.
Date posted: April 6, 2018. Answers (1)
- What are the two most important components of a virus?(Solved)
What are the two most important components of a virus?
Date posted: April 6, 2018. Answers (1)
- Name six groups of viruses under the Baltimore classification system.(Solved)
Name six groups of viruses under the Baltimore classification system.
Date posted: April 6, 2018. Answers (1)
- Where are resistant genes located in bacterial cells?(Solved)
Where are resistant genes located in bacterial cells?
Date posted: April 6, 2018. Answers (1)
- What name is given to the protein shell that encloses a virus?(Solved)
What name is given to the protein shell that encloses a virus?
Date posted: April 6, 2018. Answers (1)