Biology Past Questions and Answers

The organ through which food and oxygen are supplied to the human embryo and which also prevents harmful materials from reaching the embryo is the

A true fruit is formed from

Water is required for seed germination to take place because it

A fresh Kolanut weighing 1g was put into salt solution. After 3 hour, the kolanut weighed 1.2g. This simple experiment demonstration that

The joint between the atlas and axis vertebrae allows for