Basically let's you breathe easier.
Explanation:
The alveoli are only one cell thick. Which allows relatively easy passage of oxygen and Carbon Dioxide between the alveoli and blood vessels. (Capillaries
<h2>Sea star </h2>
Explanation:
In the given example sea star played the role of keystone species
- Robert Paine actually coined the term keystone species to describe the effect that the sea stars had on biodiversity in this community
- Keystone species are those species which are least abundant but play a governing role to decide the structure and function of community
- Loss of keystone species in a community can lead to disturbance in structure and function of a community and it cannot be recovered by other species
Photosynthesis takes place inside plant cells in small things called chloroplast.