1. Monophly - all descendants of an ancestral talon are grouped together (i.e. phylogenetic analysis should clearly demonstrate both monophyly and validity as a separate lineage).
2. Reasonable - with respect to evolutionary relevant criteria, i.e ecology morphology, or biogeography; DNA sequences are a consequence rather than a condition of divering evolutionary lineages
THE ANSWER IS B HOPE I COULD HELP
The distance the object willl fall durring the 2nd seconds is 4.9 m
<h3>Data obtained from the question</h3>
The following data were obtained from the question:
- Initial velocity (u) = 0 m/s
- Acceleration due to gravity (g) = 9.8 m/s²
- Time (t) = 2 - 1 = 1 s
- Height (h) =?
<h3>How to determine the distance the object will fall during the 2nd seconds</h3>
The distance the object will fall during the 2nd seconds can be obtained as follow:
h = ut + ½gt²
h = (0 × 1) + (½ × 9.8 × 1²)
h = 0 + 4.9
h = 4.9 s
Thus, the distance the object will during the 2nd seconds is 4.9 m
Learn more about motion under gravity:
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Answer : <u><em>Gravitational potential energy</em></u>
Explanation :
Gravitational potential is defined as the work done in moving an object from a fixed reference location to the location of object. This arises from the law of gravity and it acts against the gravity.
Mathematically, it is defined as potential energy (U) per unit mass (m).
i.e. 
The general form of Gravitational energy is
where, 
is gravitational constant
and 
are masses of interacting bodies
and 
is the distance between them.
Negative sign shows here that the system is bound.
