There are two types of ecosystems, closed and open. Closed ecosystems are ones that do not have any inputs (exchanges of energy from the surrounding environment) or outputs (exchanges of energy from within the ecosystem). Open ecosystems are ones that have both inputs and outputs.
Scientists believe that at first these bears scavenged seal carcasses that had washed ashore, and gradually began to hunt the seals by waiting at the water's edge as the seals surfaced to breathe. This is believed to be an important step in the evolution of a new bear species, the polar bear
Over time the new polar bears were used to the cold climate and learnt how to fish, they then separated from the grizzly bears, they developed new creatures which would help them survive in one of the most dangerous climate.
Direct air capture technology involves extracting CO₂ directly from the air using chemical reactions and then storing it, its direct benefit is that it can be used to reduce CO2 emissions.
<h3>What is direct air capture technology?</h3>
It is a technological process that separates CO2 emissions directly from the air.
It uses large fans to suck in ambient air, which is then passed through a liquid solvent to separate the CO2, which can be used directly or stored geologically.
Therefore, we can conclude that direct air capture technology has as a benefit that it can be used to reduce CO2 emissions.
Learn more about technologies that remove carbon dioxide here: brainly.com/question/26993240
Answer:
the answer is b. muscular walls of the arteries
Explanation:
Plant cell (chloroplasts)
