A system is a group of organs that work together and provide an organism with an advantage for survival. It is the most complex organization in your body and the final level of the progression from cells to tissues to organs and then systems.
B. because the rock is formed and it goes younger as it grows the rock is still old on the inner layers but it adds new layers as it goes
Answer:
A. Constipation
Explanation:
As there would be easy passage of faeces, based on an increase in roughage for the colon to press and rub against
Answer:
This means that some cells are able to letter molecules pass through them and this makes it easier for the molecules to pass through.
Because natural selection is caused so that an organism can adapt and better survive their environment. They are involved in the formation of fossils because organisms that die are buried in sediment and become fossils.
