Question Text
Question 4 :
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in ______.
Question 6 :
How is the sex of the child determined in human beings?
Question 9 :
Acquired characters are not inherited because they do not produce change in the DNA of germ cells. Is this statement TRUE or FALSE?
Question 10 :
If the tail of the mice is removed by surgery in each generation, do these tailless mice have tailless progeny?
Question 12 :
Which type of neurons carry message to the brain in a reflex arc?
Question 13 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19cc8273b230584979b42.PNG' />
In the above image, label the part (b)
Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is C?
Question 18 :
State whether the statement is TRUE or FALSE : Reproduction is linked to stability of population of a species.
Question 20 :
What changes are observed in the uterus if fertilisation does not occur?
Question 23 :
Which of the following group does not contain only biodegradable items?
Question 25 :
Accumulation of chemicals at the successive trophic levels of food chain is called