Answer:
D. The depth of the rock layer in which the fossils are found
Explanation:
Size is irrelevant because a t-rex and ancient hamsters lived together
Color is irrelevant, because with time, almost all fossils are a grey tone look
D.) is the better answer between C.) & D.) because layers of the earth are used in the approximation of the time period in which the dinosaur lived
Answer:
It is important that he human trachea is reinforced with cartilaginous rings to keep the passage open as pressure keeps fluctuating during the process of breathing.
Explanation:
The trachea is reinforced with cartilaginous rings as it doesn't allow the trachea to collapse in our day to day lifestyle. It also keeps the air way passage open in spite of the continuous pressure changes during breathing.
The rings are not complete posteriorly to provide another advantage, that is it allows the esophagus to expand anteriorly ( inside the body) when we swallow food.
The phrase survival of the fittest can be misleading because survival of the fittest means the more fit you are the better chance you have at survival but if you're in the wild and use smarts like setting traps you can over power the other animals same thing with humans we are not the strongest animal on the planet but we evolved to have brains that are smart enough to process info so that we could adapt to our environments.
Answer:
scientists test a hypothesis by doing an experiment or making a model
Explanation: