Fossilized non-seed vascular plants from the Devonian period have been identified.
<span>The Devonian is an early period and conformity of the Paleozoic Epoch forming from the edge of the Silurian Era.</span>
A line graph where the x axis is time and the y is velocity.
Be sure to include increments of measurements.
Answer:
Birds require high levels of oxygen and, therefore, high rates of gas exchange due to flight demands. Avian resting oxygen consumption is high compared to that of mammals and other vertebrates, and this increases even more during the flight.
Explanation:
Compared to mammals, birds have specific adaptations of the respiratory system that result in higher levels of oxygen exchange.
If the environment changes quickly and no individual members of a species are able to survive in the new environment, then the species will become extinct in that environment
The answer is, acquired traits are passed down from parent to offspring.
