Fill in the following blanks with suitable words:
The human forelimb and bat's forelimb are an example of organs whereas an insect's wing and a bat's wing are an example of organs.

Fill in the following blanks with suitable words : (a) The human forelimb and bat's forelimb are an example of ................ Organs whereas an insect's wing and a bat's wing are an example of .............organs. (b) The evolution of eye is an example of evolution by .............. (c) The scientific name of all human beings is ............ (d) Broccoli has evolved from............ by the process of artificial selection. (e) The theory of natural selection for evolution was proposed by .............

Fill in the following blanks with suitable words: Yeast is a ………… celled organism.

Fill in the following blanks with suitable words : Friction produces……………………

Fill in the following blanks with suitable words: The evolution of eye is an example of evolution by __________

Fill in the following blank with suitable words: Untreated human excreta is a …………………….hazard.

Fill in the following blanks with suitable words: In human body, oxygen and carbon dioxide are exchanged in the …………..

Fill in the following blanks with suitable words: In insects, exchange of gases occurs through …………

Fill in the following blanks with suitable words: The scientific name of all human beings is _________