The Devonian Period was part of the better known Paleozoic Period. Some scientist think it was 416 million years ago. It was the time of the great fish. It gets its name from when red rocks from Devon, England were also found in North America. It is believed that during this period parts of North America, Europe, Russia and Greenland crashed together making a new land mass. Scientists believe this period ended about 354 million years ago when land plants began to take over and much of what was an ocean disappeared.
Answer:
a. enclosing their DNA in a nucleus.
Explanation:
Prokaryotes in general have no membrane bound organelles. The cells are enclosed in a plasma membrane though .
I think your answer should be B. an organism. Hope this helps. =^-^=
A changing science is always changing with new evidence
Answer:
These two processes are related because what's produced by one is needed for the other.
Explanation:
In photosynthesis, O2 and glucose are produced. Autotrophs (and heterotrophs too) use cellular respiration to make carbon dioxide and water from organic compounds - glucose - and oxygen; therefore, we can say that the glucose and oxygen are acting as reactants in the process of cellular respiration.
