ICSE Worksheet for chapter-12 Heredity and Evolution class 10

Worksheet For class 10

This page is prepared by the Academic team of Physics Wallah which consists of ICSE Board Worksheet for Class 10 Biology. Students of Class 10 Biology can get a free Worksheet for Class 10 Biology in PDF format prepared as per the newest syllabus and examination pattern in your schools.

Standard 10 students can practice questions and answers which are given here for Biology in Grade 10 that will help them to improve their knowledge of all important chapters and their topics. Students can also download free pdf of Class 10 Biology Notes prepared by teachers and solve important problems provided here with solutions on daily basis to get more scores in school exams and tests.

If any students need to take the online test to check their concepts or undertstanding then they can visit Biology Quiz for Class 10.

Objective Type Questions

Q1. The organs which performs similar functions but have different basic structure are known as:

1. Asymmetric organs
2. Analogous organs
3. Homologous organs
4. Homophonic organs

Q2. One of the following traits cannot be inherited. This one is:

1. Colour of eyes
2. Colour of skin
3. Size of body
4. Nature of hair

Q3. New species may be formed if:

1. DNA undergoes significant changes in germ cells
2. Chromosome number changes in the gamete
3. There is no change in the genetic material
4. Mating does not take place

• 1 and 2 
• 1 and 3
• 2 , 3 and 4
• 1 , 2 and 3

Q4. According to the evolutionary theory, formation of a new species is generally due to:

1. Sudden creation by nature
2. Accumulation of variations over several generations
3. Clones formed during asexual reproduction
4. Movement of individuals form one habitat to another.

Q5. A gradual change, over a long period, in a form of life is known as:

1. Erosion
2. Evolution
3. Revolution
4. Evaluation'

Subjective Type Questions

Q6. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier ?

Q7. Why are traits acquired during the life-time of an individual not inherited ?

Q8. What factors could lead to the rise of a new species ?

Q9. Give an example of characteristics being used to determine how close two species are in evolutionary terms.

Q10. In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a ‘better’ body design ? Why or why not ?

Q11. Explain the following :

1. Mutation
2. Speciation
3. Natural selection

Q12. Describe three ways in which individual with a particular trait may increase in population.

Q13. Select the evidence we have for the origin of life from inanimate matter.

Q14. What are fossils ? What do they about the process of evolution ?

Q15. Difference between homologus organs and analogus organs with examples.