SSC (Marathi Semi-English) 10th Standard Board Exam [इयत्ता १० वी] - Maharashtra State Board Important Questions

Human tailbone is a vestigial organ. Explain.

Which of the following is the first example of class Homo sapiens?

What do we call the degenerated or partially developed useless organs in living organisms? Enlist such organs in human body? How the same organs are useful in other animals?

Vestigial organ ______ present in human body is proof of evolution.

Write a short note based on the information known to you.

Darwin’s theory of natural selection.

Explain the mechanism of hereditary changes.

Survival of fittest : Darwin : : Acquired characters : ..............................

Observe the picture and answer the following questions.
A) Which evidence of evolution is shown in the picture?
B) What can be proven with this proof?
C) Give one more example of evidence of evolution

Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................

a) Explain in brief - Lamarck’s principle of ‘use or disuse of organs’.
b) Give two examples.
c) What are ‘acquired characters’?

Complete the following chart:

What do you mean by vestigial structures? Name four vestigial organs found in man.

State Darwin’s theory of evolution.

Explain the importance of Anatomical evidences with examples.

Name the parts shown in the diagram.
Human jaw

Match the following.

Give scientific reason.

Duck-billed platypus shows relationship with mammals.

Complete the flowchart.

What is carbon dating?

Write the answers to the questions by observing the figure below.

(a)	(b)	(c)

1. Write the name of the animal ‘(a)’ in the figure.
2. Write the name of the animal ‘(b)’ in the figure.
3. Write the name of the animal ‘(c)’ in the figure.
4. Which evolutionary evidence is illustrated by this figure?
5. Write the definition of that evidence for evolution.