An organ is made from two or more tissues, which all work together to do a particular job, like the heart in animals or a leaf in a plant. An organ system is made of a group of organs which all ...

"Our work encourages a re-examination of other plant organs and animal systems, where internal tissues could play a similar role," said Kierzkowski. Beyond explaining how the anther gets its shape, ...

The questions in this quiz are suitable for GCSE biology students studying plant tissues, epidermis, palisade mesophyll and spongy mesophyll, xylem, phloem, transpiration, and the effect of ...