Binomial system was originally introduced by Gaspard Bauhin or
Casper Bauhin (1560- 1624) in his ‘Pinax Theatri
Botanici’ (1623) commonly known as
‘Pinax’.
Linnaeus did not devise the binomial system, he used it
consistently for the first time.
Structure a binomial:
Now note that in the above example:
-
First two words connstitute the binomial.
-
First word of the binnomial is the ‘genus
name’ (in above example ‘Annona’). First
letter of a genus name is always caitalized.
-
Second word of a binomial is the ‘specific
epithet’, NOT THE ‘SPECIES NAME’.
Specific epithet always begins with a small letter, irrespective of
being a proper noun or common noun.
-
Genus name and Specific epithet together connstitute the
‘species name”.
-
Binomial is followed by the ‘author
name’, name of the taxonomist who first proposed the
binomial. Author’s name is usually abbreviated. For example,
L. or Linn. is an abbreviation of Linnaeus. In this case both
abbreviations are allowed but in a particular article, paper, or review
only one abbreviation must be used consistently.
-
Then comes publication/reference. It is complete reference
(Title of publication, volume, number if given, page number and year)
to the work in which a binomial was first published. In this example,
the binomial Annona squamosa published by Linnaeus on page 537 of his
famous book ‘Species Plantarum’ in the year 1753.
-
In handwritten matter, genus name and specific epithet are
invariably underscored separately. In printed matter they must be
italicized.
- Explain how an upright position is maintained in herbaceous plants
Explain how an upright position is maintained in herbaceous plants Plant cells have a cellulose cell wall; which is rigid; plants absorb water through osmosis and cells become turgid; which makes the tissues firm and erect; Collenchyma cells have thickened cell walls; to give strength; Xylem vessels have thick and lignified walls; that strengthen plants. […]
- Describe how xerophytes are adapted to living in their habitat
Describe how xerophytes are adapted to living in their habitat Have thick, fleshy (succulent) and green stems; that are modified for water storage and photosynthesis; stomata are reduced in number/located in cavities on the epidermis(sunken stomata) / located mainly on lower part of leaf surface/Exhibit reversed stomata rhythm to minimize transpiration; Some are deep rooted; […]
- Describe how a mammalian heart is adapted for its function
How mammalian heart is adapted for its function The heart has atrioventricular/tricuspid and bicuspid valves and semi-lunar valves which allow blood to flow in one direction/prevent backflow of blood; valves have non-elastic chordae tendonea/ tendons which prevent atrioventricular valves from turning inside out into auricles during ventricular systole; The heart has thick muscular walls which […]
- Name the causative agents of the following diseases in humans
i) Candidiasis Candida albicans ii) Cholera Vibris cholerae RELATED SEARCHES Post Views: 11
- Give the meaning of the term binomial nomenclature
- Give the difference between Darwinian and Larmackian theories of evolution
Give the difference between Darwinian and Larmackian theories of evolution Larmarcician Darwinian RELATED SEARCHES Post Views: 11
- What is meant by the terms test-cross?
A cross made between a (homozygous) recessive parent and a parent of unknown genotype (to determine whether the unknown genotype in homozygous or heterozygous for dorminant gene RELATED QUESTIONS Post Views: 26
- What is meant by the term allele?
Allele refers to alternative form of a gene which occupy the cell loci which control the same characteristic RELATED QUESTIONS Post Views: 29
- State the functions of ribosomes and Golgi apparatus
a) Ribosomes Protein synthesis b) Golgi apparatus Post Views: 46
- A set up that was used to investigate a certain process in plants as shown in the diagram below.
a) What process was being investigated? (Rate of) transpiration b) i) State two precautions that should be taken when setting up the experiment. Cut shoot under water Apply petroleum jelly to cork-glass/Bung-glass/Bung-shoot connection Open reservoir tap ii) Give a reason for each precaution stated in b(i) above. To ensure no air enters leafy shoot/xylem To […]
- State how the following structures of the skin are adapted to their functions;
State how the following structures of the skin are adapted to their functions; i) Malphigian layer has actively dividing cells that give rise to new epidermal cells Epidermal cells contain Melanin that protects /prevents the skin against ultraviolet rays/UV light ii) Sebaceous glands Secrete sebum, an antiseptic/water repellent substance/prevent drying/cracking of skin/makes skin supple Post […]
- A certain animal has no incisors, no canines, 6 premolars and 6 molars in its upper jaw. It has 6 incisors, 2 canines, 6 premolars and 6 molars on the lower jaw. Write its dental formula
b) State the likely mode of feeding for the animal Herbivorous c) Give a reason for your answer in (b) above Lack of canines/incisors on the on the lower jaw/presence of canines / Incisors on the lower jaw only Post Views: 22
- Explain continental drift as an evidence of evolution
Post Views: 11
- The diagram below shows the position of an image formed in a defective eye
a) Name the defect. Hypermetropia/long sightedness b) Explain how the defect named in (a) above can be corrected. Post Views: 22
- State the aspects of light that affect the rate of photosynthesis
Post Views: 12
- Give the differences in products of anaerobic respiration in plants and animals
Plant Animal Post Views: 13
- What is oxygen debt?
The amount of oxygen required to convert (accumulated) lactic acid to water, carbon (IV) oxide and energy/amount of oxygen required to get rid of (accumulated) lactic acid (when supply of oxygen is less than demand)/anaerobic respiration. Post Views: 14
- State four ways in which the red blood cells are adapted to their function
Post Views: 15
- Other than sugars, name two compounds that are translocated in the phloem
Post Views: 22
- Name the structures in phloem that are involved in the translocation of sugars
Answers Post Views: 7
- A group of students from Awasi Boys High School set up an experiment to demonstrate a certain process. The experimental set up were as shown in the diagrams below.
A group of students from Awasi Boys High School set up an experiment to demonstrate a certain process. The experimental set up were as shown in the diagrams below. After 10 minutes the students recorded their observation in a table as shown below. a) Name the process being demonstrated by this experiment. (1mk) Diffusionb) Explain […]
- Name the fins that prevent the following movements of fish during swimming
Post Views: 18
- Name three forces that maintain transpiration stream
Post Views: 7
- State two roles of green plants in fish ponds other than providing food
Post Views: 19
- Name two sites of gaseous exchange in amphibians
Post Views: 9
- UTUMISHI ACADEMY BIOLOGY PAPER 1 PRE-MOCK REVISION KIT 2023 MODEL14012023003
Post Views: 103
- RECEPTION-RESPONSE AND COORDINATION BIOLOGY FORM 4 NOTES MODEL14012023004
Post Views: 46
- GENETICS REVISION QUESTIONS FORM 4 BIOLOGY MODEL14012023005
Post Views: 63
- GENETICS NOTES BIOLOGY FORM 4 MODEL14012023002
Post Views: 45
- EVOLUTION NOTES BIOLOGY FORM 4 MODEL14012023
Post Views: 38
- The figure below represents a plant
The figure below represents a plant. a) State the division it belongs to. (1mk) Post Views: 4
- CRE Standard 8 Notes
CRE Standard 8 Notes CHAPTER ONE GOD’S HELP AND SELF HELP The body is the temple of God Various drugs and how they are used The effect of drug on human body Sexual misuse The effects of sexual misuse The misuse of natural resources The view of traditional African society on the misuse God’s creation […]
- Need distractions? Try these on us.
Here’s what’s trending… bulbagarden View blog The official Tumblr of Bulbagarden, the original Pokémon community! Art, memes, and other content by and for Pokémon fans~! fatsoxmainewildlifeblog View blog HOPE YOU ENJOY WHAT I HAVE HERE! rt0no View blog 絵の保管庫 Author:rt0no Mail:rt0no.gra◆gmail.com(◆→@) freshbugart View blog quanronggallery View blog Find more good stuff Take me to Tumblr […]
- State two properties of monosaccharide
State two properties of monosaccharide. (2mks) sweet taste soluble in water What is the main function of monosaccharide in organisms? (1mk) Provision of energy. Virus-free.www.avast.com Post Views: 1
- State the functions of the following parts of a light microscope.
State the functions of the following parts of a light microscope. Objective lens (1mk) Magnifies the specimen Diaphragm (1mk) Regulates amount of light passing through to the specimen Virus-free.www.avast.com Post Views: 4
- State the formula for calculating magnification when using the following
State the formula for calculating magnification when using the following: Virus-free.www.avast.com Post Views: 20
- Explain why a mule, a product of mating between a horse and a donkey is sterile
Explain why a mule, a product of mating between a horse and a donkey is sterile. (1mk) Are not of the same species. Virus-free.www.avast.com Post Views: 1
- Name the taxonomic unit with:
Name the taxonomic unit with: The greatest number of organism. (1mk) Kingdom With the least number of organisms. (1mk) Species Virus-free.www.avast.com Post Views: 1
- What name is given to the process whereby :
What name is given to the process whereby : Red blood cells wrinkle after losing their water to a hypertonic solution?(1mk) Crenation Plant cells become flaccid after losing their water to a hypertonic solution?(1mk) Plasmolysis Virus-free.www.avast.com Post Views: 5
- The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple.
The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple. […]
- State three factors that affect the rate of diffusion
State three factors that affect the rate of diffusion (3mks) Temperature Surface area to volume ratio Surface area Thickness of the membrane Type of medium What does a semi-permeable membrane correspond to in an animal cell? (1mk) Cell membrane Virus-free.www.avast.com Post Views: 1
- The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution.
The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution. Which of the two cells A and B was immersed in; (2mks) 25% salt solution………………………………………………A 2% salt solution………………………………………………..B Comment on the cell placed in 25% salt solution (2mks) The cell placed in 25% salt solution […]
- Classify the following carbohydrates into monosaccharides, disaccharides and polysaccharides: [category] Real subject
Classify the following carbohydrates into monosaccharides, disaccharides and polysaccharides: Starch, sucrose, maltose, fructose, glucose, and cellulose. (3mks) Virus-free.www.avast.com Post Views: 3
- Identify the organelle
Identify the organelle Identify the organelle (1mk) Chloroplast State the function of the organelle (1mk) Site for photosynthesis i) Name the part labeled N (1mk) Stroma ii) Name the chemical compound contained in the structure labeled M. (1mk) Chlorophyll Virus-free.www.avast.com Post Views: 1
- Mangiferaindica is the name given to a mango tree.
Mangiferaindica is the name given to a mango tree. What does each of the name represent? Indica – Genus (1 mark) Mangifera – Specific (1 mark) Name this method of identifying organisms. (1 mark) Binomial nomenclature Virus-free.www.avast.com Post Views: 0