Questions

The comma ( , ) is a punctuation mark in English which is most frequently used.

It is perhaps also the most abused and misused punctuation mark among all.

The blood of some invertebrate animals like the earthworm is red due to haemoglobin pigment, but the pigment is dissolved in the plasma. In vertebrates the same pigment is found in the red corpuscles and not in the plasma.

Milk is not a pure substance since it has so many constituents that can be separated physically.

Compounds are pure substances formed from elements unlike mixtures.

Cellular repiration takes place in the mitochodria.

There are 3 phases of cellular respiration. They are:

1. Glycolysis (Fermentation),

2. Krebs Cycle, and

3. Electron Transport.

Glycolysis takes place in the cytoplasm. The Krebs cycle and electron transport takes place in the mitochondria.

The place which is designated as 0 degrees longitude is Greenwich, England.

A place where bees are kept is called as an apiary.