Introns because they are coding sequences.
Exons because they are non-coding sequences.
I believe that the answer is D. If something has evolved, it can not interbreed with its old species. I think this is right!
Rate Brainliest user please!
Answer:
Some examples of decomposers include bacteria, fungi, and some insects. If decomposers disappeared from a forest ecosystem, wastes as well as the remains of the dead organisms would pile up, and producers (plants) would not have enough nutrients.
the answer is hemimetabolism
A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons.
