<u>Answer:</u>
The scientists have used the common historical and functional basis of living organisms to create the geological time period.
<u>Explanation:</u>
All the living things present on earth have gone through the evolutionary process. According to the researches, the oldest fossil found on the earth can be traced 3.5 to 3.7 billion years back, and life today on earth has been evolved from a common ancestor through natural selection or adaptions.
The geological time period shows all the changes in living organisms in different eras eons, eras, periods, epochs.
Answer:
effector
Explanation:If the value is not at the set point or is outside the normal range, the control center sends a signal to the effector. The effector is an organ, gland, muscle, or other structure that acts on the signal from the control center to move the variable back toward the set point.
Answer:
Stem cells replicate via meiosis, not mitosis
Explanation:
