Answer:
organ than body than organism
Explanation:
Answer:
The Tunica Media
Explanation:
Usually referred as the middle layer, it helps regulate blood flow and pressure.is a support for the vessel.Hope this helps:)
The liver is at a #3 level of organization, an organ..which has a specific job to do in the body.
D, Photosynthesis is with plants.
The best phrase is 'natural selection is a process that causes evolution '. Natural selection can also be referred to as selection pressures within a population that favour particular traits that enable the population to better adapt to its habitat. It's could be better camouflage, high sense of smell, and etcetera. These traits are preserved while those that cause disadvantage are diminished. This causes evolution of the population .