I would go with B & D because they change over time and they can go extinct like those big octopus in the oceans, they are rare to see in my opinion because they can blend in with other things that keeps them away from danger.
One group of reptiles, characterized by the fossil Archaeopteryx, led to the evolution of birds. The correct answer is birds
U mean y not what deaar!!
Redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum
The answer to this question is the term Gross Anatomy. The Gross Anatomy is also known as topographical anatomy which is the study of large body structures at the macroscopic levels. Gross anatomy deals with body structures that with minimal magnification because it is seen by the naked eye.
