Maharashtra Board Class 5 EVS Evolution Textbook Exercises and Extra Question and Answers.
Fill in the blanks.
(a) The first systematic explanation of the concept of evolution was given by —————–.
(Charles Darwin, Willard Libby,Louis Leakey)
(b) ————- are the most evolved animals among vertebrates.
(Aquatic animals, Amphibians,Mammals)
Answer each question in one sentence.
(a) What do we call animals which live in water and also on land?
(a) Animals that live in water and on land are called amphibians.
(b) Where did the first humans appear?
(b) The first humans appeared in Africa.
Give reasons for the following :
(a) The species of dinosaurs, which were enormous in size, suddenly became extinct.
(a) The species of dinosaurs, which were enormous in size, suddenly became extinct likely due to some sudden natural disaster or environmental change that disrupted their ecosystem, making it difficult for them to survive.
(b) In the course of time, a new species with characteristics different from the original species is created.
(b) In the course of time, a new species is formed with characteristics different from the original species. This development occurs due to genetic changes across generations, which give rise to new traits and characteristics.
Maharashtra Board Class 5 EVS Evolution Extra Question Answer
Q: Who gave the first systematic explanation of the concept of evolution?
Answer: The first systematic explanation of the concept of evolution was given by Charles Darwin.
Q: What are the organisms that live both in water and on land called?
Answer: Organisms that live both in water and on land are called amphibians.
Q: What was the biggest reason for the sudden extinction of the giant dinosaurs?
Answer: The sudden death of giant dinosaurs occurs due to natural disasters or environmental changes.
Q: What are some of the characteristics of the most developed animals among vertebrates?
Answer: Mammals have the characteristic of surviving the child’s development in the mother’s womb and feeding their young with mother’s milk.
Q: Where did the evolution of the human species begin?
A: The evolution of the human species began in the grasslands of Africa.
Q: What is the term for animals without a backbone?
A: Animals without a backbone are called invertebrates.
