The stage is implantation. it embeds into uterus wall. it happened after fertilisation
Answer:
no, It is irreversible - the damaged metal cannot be returned to its former state.
Explanation:
Answer: the correct option is C (birds and mammals)
Explanation: Transitional forms exhibits traits common to both an ancestral group and its derived descendant group. Transitional forms are seen in the fossil record that link all of these groups EXCEPT
birds and mammals.
ATP, which is created by mitochondria, (Not just mitochondria but its a good example) ADP lacks Phosphate, doesn't have enough power to transfer into adenosine triphosphate.
I'm pretty sure it's condensation.