A I am pretty sure because young adulthood is when you are acting more mature but taking the next step would be middle
Humans have used artificial selection or selective breeding by breeding the wolves with the desirable traits together to create offspring who will most likely have both of the desirable traits the parents had.
<h2>Evolution of Earth</h2>
Explanation:
The events of earth history from oldest to new are as follows:
- Earliest evidence of life on Earth.
- Production of oxygen by photosynthetic organisms.
- Origin of Eukaryotic cell.
- appearance of first tetrapods on land.
Scientists assume that the Earth evolved about 4.6 billions years ago. However, the first evidence of life dates back to 3.7 billion years ago. It is assumed that the conditions of primitive Earth were such that it could not support life. However the inorganic compounds spontaneously reacted and gave rise to biological molecules such as amino acids, proteins lipids etc.In this way the first cells appeared as prokaryotes, photosynthetic prokaryotes began to produce oxygen and gradually new forms of life arose.
An important event in the history of Earth is cambrian explosion during which several forms of life arose and diversified to occupy various strata of Earth.