Answer: Ancient Relative of a living organism
Explanation: Ancient Relative because by using the index fossil, you are also using the law of superposition. This law does not give you an accurate/specific date but instead the order they are in (i.e me saying i am older than my siblings compared to me saying i am 2 years older than them). By using an ancient relative of a living thing then we can see its phylogenic tree and measure around how old it is. Fossils also hold carbon and chemicals in there bones which allows us to use carbon dating. Carbon dating is an accurate way of measuring age.
which neurons receive a signal first? (information about the environment like heat or pain)
Answer:
Dendrites. The first two neuronal functions, receiving and processing incoming information, generally take place in the dendrites and cell body.
Say my day is good if u like girls and if your single
Answer:
Have a good and Nice day ahead !!!Explanation:
Have a great day ahead........
what hormone makes girls emotional on their period
Answer:
estrogen and progesterone
Explanation:
both are the major hormones for emotional and physical changes