A. Trapping an organism in a environment with extremely limited air disabled cellular respiration aka giving cells the proper oxygen they need
The "small animals diversify quickly" is true about life on Earth at this time.
<u>Option: D</u>
<u>Explanation:</u>
The appearance of the Cenozoic period took place with the vanishing of the dinosaurs, this scenario is nearly 65 million years earlier, which is continued till today. This era has been splited into two periods of time named as the Tertiary and the Quaternary. There were inevitably number of vacant spaces on Planet where animals could survive after the dinosaurs' absence.
Immediately after their extinction, several vacant areas have been studied in nature where animals could flourish. At the start of the Cenozoic the mammals which were small, mouse resembling animals getting scattered rapidly and also diversified quickly in nature, their size also started increasing. Massive elephants and rhinos, sabre-tooth cats and lions, horses and deers quickly got populated in Earth's plains and forests.
<u>Answer and explanation</u>;
- <em><u>Variations in the structure account for functional differences among membranes by their protein. Different types of cells contain different sets of membrane proteins which carry out different functions. </u></em>
- For example; In the cell membrane, there are embedded proteins that function in transporting nutrients into the cell, and waste products out of the cell.
- In the membranes of the mitochondria, proteins are needed to serve as electron carriers. organization of proteins determines the function.
The breeding of plants and / or animals to produce fascinating traits.