Answer:A) No; action potentials result in increased permeability of the plasma membrane to sodium.
Explanation
Action potential is generated when influx of sodium ions occurs through the voltage gated ion channels in the nodes of ranvier cells, into the axoplasm. Provided the stimulus is strong enough more Sodium gated channels open and Sodium ions move in.
As sodium pump only pump sodium ions out of the cells , and it is sodium inlfux that causes action potentia,l this does not cause action potential .
In addition ATPs hydrolysis which supply energy for the sodium pump does not lead to action potential.
Answer:
The earliest time that life forms first appeared on Earth is at least 3.77 billion years ago, possibly as early as 4.28 billion years, or even 4.5 billion years; not long after the oceans formed 4.41 billion years ago, and after the formation of the Earth 4.54 billion years ago.
Explanation:
Answer:
Answer is A
Explanation:
200kilocalories/meter2/year
The answer is Lithotomy position. This position is ideal for pelvic exams and is the most used position during childbirth. It gives the physician better access to both the mother and the body. Additional, it provides maximum exposure to the female genitalia, allowing the doctor to assess and examine further.
1. Make an observation
2. Form a question
3. For a hypothesis
4. Conduct an experiment
5. anazlyze the data and draw a conclusion