(a)i)
- Brain
- Eyes
- Upright posture/bipedal locomotion
- prehensible arm/hand
- Speech
ii) State the ways in which Homo sapiens differs from Homo habilis
•standing upright/erect posture
•intellectual capacity/higher thinking •capacity/bigger brain/higher brain capacity
•communication through language/speech
b) i) Explain Larmarck’s theory of evolution
- Inheritance of acquired characteristics/environment induces production of a favorable trait which is then inherited
ii) Explain why Lamarck’s theory of evolution is not accepted by biologists today
- evidence does not support Lamarck’s theory
- acquired characteristics are not inherited/inherited characteristics are found in reproductive cells only
iii) Explain Darwin’s theory of evolution
- inheritance of genetically acquired characteristics
- a character happens to appear spontaneously which gives advantage to an organism therefore adapted then inherited through natural selection
Anganifelix answered the question on April 17, 2018 at 15:00
- (a)i) Explain the meaning of evolution ii) Differentiate organic evolution from chemical evolution as theories of origin of life iii) What is special creation? b)...(Solved)
Evolution questions. Form four biology, KCSE EXAMS SAMPLES.
Date posted: April 17, 2018. Answers (1)
- State the ways in which movement can be noticed in plants (Solved)
State the ways in which movement can be noticed in plants
Date posted: April 17, 2018. Answers (1)
- Discuss the characteristics of living things (Solved)
Discuss the characteristics of living things
Date posted: April 17, 2018. Answers (1)
- Describe the term organ system (Solved)
Describe the term organ system.
Date posted: April 17, 2018. Answers (1)
- Discuss the tissues found in plants (Solved)
Discuss the tissues found in plants.
Date posted: April 17, 2018. Answers (1)
- Define a tissue and describe the tissue types found in animals(Solved)
Define a tissue and describe the tissue types found in animals.
Date posted: April 17, 2018. Answers (1)
- Describe Cell Specialization/Cell Differentiation(Solved)
Cell Specialization/Cell Differentiation
Date posted: April 17, 2018. Answers (1)
- Describe the Procedure followed in cell size estimation(Solved)
Describe the Procedure followed in cell size estimation
Date posted: April 17, 2018. Answers (1)
- Describe how to use the Microscope(Solved)
How to use a Microscope
Date posted: April 17, 2018. Answers (1)
- Describe the parts of a microscope(Solved)
Describe the parts of a microscope
Date posted: April 17, 2018. Answers (1)
- What are the rules of Binomial Nomenclature(Solved)
Rules of Binomial Nomenclature
Date posted: April 17, 2018. Answers (1)
- What is scientific Naming of organisms all about?(Solved)
What scientific Naming of organisms is all about?
Date posted: April 17, 2018. Answers (1)
- State the practical applications of genetics(Solved)
State the practical applications of genetics.
Date posted: April 17, 2018. Answers (1)
- State the five major kingdoms into which all living organisms are classified (Solved)
State the five major kingdoms into which all living organisms are classified
Date posted: April 17, 2018. Answers (1)
- (i) what is gene mutation? (ii) Explain how the following occur during gene mutation (a) Deletion (b) Inversion (c) Insertion (d) Substitution iii) Name...(Solved)
Questions on gene mutation, form four biology
Date posted: April 17, 2018. Answers (1)
- State external features of plants used in classification(Solved)
State external features of plants used in classification.
Date posted: April 17, 2018. Answers (1)
- State the differences in plants and animals(Solved)
State the differences in plants and animals
Date posted: April 17, 2018. Answers (1)
- State the precautions During Collection and Observation of Specimen(Solved)
Precautions During Collection and Observation of Specimen
Date posted: April 17, 2018. Answers (1)
- Describe how to use a magnifying lens
(Solved)
Describe how to use a magnifying lens
Date posted: April 17, 2018. Answers (1)
- (i)Explain chromosomal mutation .(ii) Explain how the following types of chromosomal mutations occur. (a) Duplication (b) Inversion (c) Deletion (d) Translocation (e) Non-disjunction (f) Polyploidy (Solved)
(i)Explain chromosomal mutation .(ii) Explain how the following types of chromosomal mutations occur. (a) Duplication (b) Inversion (c) Deletion (d) Translocation (e) Non-disjunction (f) Polyploidy
Date posted: April 17, 2018. Answers (1)