Answer: The integumentary system includes the skin, hair, nails, glands, and nerves. Its primary role is serving as a protective barrier against external elements. Additionally, it aids in maintaining body fluids, defending against diseases, disposing of waste, and controlling body temperature.
the correct responses are the first and second options
Explanation:
Response:
The accurate responses are A and D
To clarify:
Russell's theory involves the natural gradients of protons, asserting that four billion years ago, alkaline solutions emerged, leading to slightly acidic oceans (with CO2 levels being approximately a thousand times higher, reacting with H2O to form carbonic acid which results in mildly acidic seas). Acidity signifies proton concentration levels, higher in oceans compared to vent fluids. This variation has resulted in a natural proton gradient across the vent membranes that favored an outside positive polarity, which resembles the electrochemical potential in contemporary cells. This potentially explains why the last universal common ancestors across the three biological domains developed proton pumps.
Answer:
cell membrane, DNA and RNA, cytoplasm, along with ribosomes
Explanation:
A state of respiratory acidosis is implied, indicated by a decreased blood pH and accelerated breathing in the patient.
