Answer: floating (vertebral) ribs
Explanation:
In a typical vertebrae there are 12 pairs of ribs. Each rib is a flattened bone with curvature. These ribs contributes to the wall of the thorax. The last 2 pairs of ribs are not connected with the sternum bone and it's associated cartilage. These ribs are called as the floating ribs. The floating ribs are attached with the vertebral column. These ribs are small and relatively delicate as compared to other pairs of ribs. These ribs include a cartilaginous tip.
Answer:
A.
Explanation:
Dinosaurs and old trees are samples of ancient earth which can be compared to the actual world showing the difference between now and then.
Answer:
See the complete question and the answer below
Explanation:
<em>Suppose that you and a friend see brightly colored pigeons like these at a nature park. Because pigeons are usually gray and white, you both wonder where these colors came from. Suddenly, your friend says, "I have a theory. These birds must get their colors from eating food that has the same colors."Is your friend's explanation a scientific theory? Give reasons to explain your answer</em>
<em>The answer is </em><em>no</em><em>. My friend's explanation is not a scientific theory.</em>
A scientific theory is a tested and proven phenomenon. In order for a statement to become a theory, it must have been tested through experimentation by several independent researchers and found to be true. A mere statement based on perception with little or no experimental test is just a hypothesis and not a theory.
Instead of my friend to have said, "I have a theory", he should have said, "I have a hypothesis".
Answer: sorry I’m to lazy to type
:)))
The biosphere covers basically every place on Earth where life exists. So, plants and animals, as well as microorganisms are part of the biosphere. Bio means life.