Heredity and Evolution — Science STD 10 — Question

Fill in the blanks in the following statements:
On going down in a group in the periodic table, the metallic character of elements _________.

Fill in the following blanks with suitable words:
The organs of respiration in man are the __________.

Fill in the blanks in the following statements:
The horizontal rows in a periodic table are called _________.

Chromosomes complete their condensation and become clearly visible along with their sister chromatids during_________.

In human beings, sudden genetic changes are brought about by ......... .

Fill in the following blanks with suitable words:
The form of carbon which is used as a lubricant at high temperature is __________.

Fill in the following blanks with suitable words:
Bowman’s capsule and tubule taken together make a _________.

………… convert salts of uranium into insoluble salts.

First record of human-like animal is in the from of ………… ape from East Africa.

Fill in the following blanks with suitable words:
Compounds of carbon with hydrogen alone are called __________.