Bacteria<span> can </span>obtain energy<span> and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds.</span>Bacteria<span> can </span>obtain energy<span> and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.</span>
Answer:
A.Earth's early atmosphere lacked oxygen, which multicellular organisms need to break apart food
Explanation:
One important feature that led to the development of multicellular organisms was the rise of oxygen-producing photosynthetic bacteria. Prior to this development, the unicellular organisms (anaerobes) then present on Earth obtained energy from inorganic fuels.
However, with the presence of oxygen in the atmosphere, a shift was observed as organisms that could obtain energy from the reduction of energy became predominant. This unicellular aerobes later paved way for the evolution of multicellular aerobes.
Answer:sensory adaptation
Explanation:
Sensory adaptation occurs when our senses no longer percieves a stimulus because of our sensory receptor's continuous contact with it.
