<u>Answer:</u>
Recent evidence suggest that feathers evolved from scales and suggest that 'feathers and pycnofibers' could be homologous.
<u>Explanation:</u>
- One of the major difficult issue related to bird evolution is the evolution of feathers.
- Feathers are considered as the most 'complex integumentary structures' which are found in vertebrates.
- Evolutionary developmental biology suggests that the 'planar scale structure' is been modified for developing into feathers by 'splitting' to form web like structures.
- Scales and Feathers consist of 'two distinct form of keratin' so it was thought that 'each type was exclusive skin structure' but recent study suggests that they are developmental expressions of same skin structures.
Organisms are broken into decomposers. hope that helped
Using W=mg
12*10 m/sec squared
10 m/sec squared = 100
100*12
=
1,200 newtons
Un what's even the question so that I can help you get the answer???
I am going to assume it mean what i think it does and say <span>A) Predation</span>
