The hypothesis explaining the source of traits of offspring was changed due to new methods. Thus, this is an example of:
A hypothesis changing because a new scientific method was developed.
<span>The current estimated total number of species on earth is between five million and hundred million.
The reason why it is hard to get an accurate count is because some species are very hard to find reason being that of nocturnal habits, location, and the size.
All the species which have ever lived on earth are being estimated to be extinct. It is approximately one extinction for every million species for years. Mammals species like typically persist for one million years.</span>
Nose, Mouth, Pharynx, Larynx, Trachea, Bronchi, Bronchioles, Lungs, Alveoli.
Answer:
probably the heart because you can live with just a brain stim and no brain but you would die without a heart
