Diffusion
jim items answered the question on September 21, 2018 at 10:43
- A millipede, grasshopper and crayfish all belong to Phylum Arthropoda. Mention four major characteristics that they have in common.
(Solved)
A millipede, grasshopper and crayfish all belong to Phylum Arthropoda. Mention four major characteristics that they have in common.
Date posted: September 21, 2018. Answers (1)
- People can die when they inhale gases from burning charcoal in poorly ventilated rooms. What compound is formed in the human body that leads to...(Solved)
People can die when they inhale gases from burning charcoal in poorly ventilated rooms. What compound is formed in the human body that leads to such death?
Date posted: September 21, 2018. Answers (1)
- Euglena is positively phototactic. Of what significance is this characteristic?(Solved)
Euglena is positively phototactic. Of what significance is this characteristic?
Date posted: September 21, 2018. Answers (1)
- What is meant by the term natural selection?(Solved)
What is meant by the term natural selection?
Date posted: September 21, 2018. Answers (1)
- Name the structures in the phloem that are involved in the translocation of sugars
(Solved)
Name the structures in the phloem that are involved in the translocation of sugars
Date posted: September 21, 2018. Answers (1)
- Describe how the oxygen in the alveolus reaches the red cells
(Solved)
Describe how the oxygen in the alveolus reaches the red cells
Date posted: September 21, 2018. Answers (1)
- State the function of the following parts of a nephron
i)loop of Henle
ii)Distal convoluted tubule(Solved)
State the function of the following parts of a nephron
i)loop of Henle
ii)Distal convoluted tubule
Date posted: September 21, 2018. Answers (1)
- Name the organelle that is likely to be found in abundance in;
a)An enzyme secreting cell
b)cells producing lipid related secretions
c)Areas where the cells have raptured.(Solved)
Name the organelle that is likely to be found in abundance in;
a)An enzyme secreting cell
b)cells producing lipid related secretions
c)Areas where the cells have raptured
Date posted: September 21, 2018. Answers (1)
- State the main significance of short food chains in an ecosystem.(Solved)
State the main significance of short food chains in an ecosystem.
Date posted: September 21, 2018. Answers (1)
- State two features of neurons that increase the rate of impulse transmission
(Solved)
State two features of neurons that increase the rate of impulse transmission
Date posted: September 21, 2018. Answers (1)
- Explain how the following occur during gene mutation
i)Insertion
ii)Substitution
(Solved)
Explain how the following occur during gene mutation
i)Insertion
ii)Substitution
Date posted: September 21, 2018. Answers (1)
- How do identical twins and fraternal twins arise? Explain.(Solved)
How do identical twins and fraternal twins arise? Explain.
Date posted: September 21, 2018. Answers (1)
- Name the organelle where
a)Kreb’s cycle take place in a cell
b)Where are lysosomes synthesized(Solved)
Name the organelle where
A) Krebs's cycle take place in a cell
B)Where lysosomes are synthesized
Date posted: September 21, 2018. Answers (1)
- State the function of the following structures in the human ear:a)Eustachian tube b)Semi-circular canals(Solved)
State the function of the following structures in the human ear:
a)Eustachian tube
b)Semi-circular canals
Date posted: September 21, 2018. Answers (1)
- State five preventive measures of schistosomiasis in human beings(Solved)
State five preventive measures of schistosomiasis in human beings
Date posted: September 20, 2018. Answers (1)
- State the most suitable biological tool for collecting the following organisms
i)Ants from a tree trunk.
ii)A moth from a coffee farm.
(Solved)
State the most suitable biological tool for collecting the following organisms
i)Ants from a tree trunk.
ii)A moth from a coffee farm.
Date posted: September 20, 2018. Answers (1)
- How does sunken stomata help in lowering transpiration.(Solved)
How does sunken stomata help in lowering transpiration.
Date posted: September 20, 2018. Answers (1)
- Name the vitamin which plays an important role in the formation of blood cells.(Solved)
Name the vitamin which plays an important role in the formation of blood cells.
Date posted: September 20, 2018. Answers (1)
- Give two better ways of measuring the rate of photosynthesis other than counting bubbles produced per minute.
(Solved)
Give two better ways of measuring the rate of photosynthesis other than counting bubbles produced per minute.
Date posted: September 20, 2018. Answers (1)
- Bivalent, synapsis and crossing over are terminologies used in cell division.a)Name the stage of meiosis in which the above process occurb)Distinguish between synapsis and crossing...(Solved)
Bivalent, synapsis and crossing over are terminologies used in cell division.
a)Name the stage of meiosis in which the above process occur.
b)Distinguish between synapsis and crossing over.
Date posted: September 20, 2018. Answers (1)