<u>Answer:</u>
<em>It is advantageous to have lesser number of bones in the pectoral girdle.</em>
<u>Explanation:</u>
Pectoral girdle is made up by the bones that connect the upper limbs to the appendicular skeleton which includes all the limb bones. Pectoral girdle in humans is made up of two bones. They are clavicle (collar bone) and scapula. The pectoral girdle allows the free movement of upper limbs.
The bones of pectoral girdle are not as massive as the bones of pelvic girdle since it doesn’t have the function of support. Lesser number of bones in pectoral girdle makes movement of upper limbs more free.
I’m not sure. Im pretty sure it’s D.
Extinction and speciation rates.
<h2>
Answer:</h2>
Differences between coniferous and deciduous forest lie in their names.
<h2>Explanation:</h2>
- One of the biggest differences between forests is in their names.
- Coniferous means 'cone bearing,' and these are trees that have cones, like pine trees.
- Most conifers are considered evergreens, because they never lose their leaves and are 'forever green,' regardless of the season.
- Deciduous means 'falling off'.
- Deciduous trees, on the other hand, lose their leaves each year, which are mainly comprised of trees such as oaks and maple trees.
Result: the difference lies in their name.
