They can be observed in a microscope because both of them are very small to see. Mostly, they contain genetic material. Viruses need a host to keep it spreading or etc.
It is referred to as a population because complex means similar or the same
Answer:
Preserved fossils im pretty sure
Explanation:
:)
Answer:Amphibians evolved during the middle of the Devonian period (416 to 359 million years ago) from the lobe-finned fish of the vertebrate class Sarcopterygii. Species within the genus Ichthyostega (members of the Labyrinthodontia subclass) are considered by some scientists to be the earliest amphibians.
Explanation:
Answer:
(A) The endoplasmic recticulum
Explanation:
The endoplasmic recticulum (ER) is the organelle that provides instructions to the proteins on the surface of vesicles.