Answer:
I would say a polar bear.
Explanation:
They have gone though changes Because of global warming and climate change we humans have caused
I hope this helps! :))
Cold air usually pushes warm air because cold air has a HIGHER DENSITY
It’s d I think I’m not sure
Answer:
True
Explanation:
Catecholamines refer to the hormones produced by the adrenal gland present on the upper side of the kidney.
The catecholamine hormone includes the epinephrine, norepinephrine and the dopamine.
During stress conditions, the sympathetic division of the autonomic nervous system gets activated which leads to the release of the norepinephrine from the postganglionic neurons and the prolonged-release leads to the release of the adrenaline from the adrenal glands.
Thus, true is the correct answer.
Answer:
the point of science is to disprove hypothesis so having a hypothesis that doesn't allow that to happen is not good science
2. they don't fit in our mouths so are a trait from when we had larger jaws
3. bones of your lower jaw, middle ear and voice box (they aren't actually gills fyi, they just look like them)
4. likely yes as their bones were hollow but likely only able to fly short distances, the thought was that they couldn't do their size and weight but with hollow bones they were able to like a quail would
5. no because they could be sister taxa, you would have a hard time proving exactly that this new fossil is the common ancestor that birds came from to replace the old hypothesis (guess) of which one did.
Explanation:
