Answer: D) There are no fossils of dinosaurs in rocks above the iridium layer.
Explanation: i’m not good at explaining but the meteorite which caused mass extinction to dinosaurs left behind iridium. if there was a mass extinction, then there is no more dinosaurs and there won’t be any fossils left of them to be found above of the iridium layer as they are allllll gone. good luck with school everyone!
Answer: B. Concord
Explanation:
The colonial military supplies reportedly stored by the Massachusetts militia at Concord.
Answer:
resources , Slaves from africa, Land
Answer:
The first one: Fertile soil for growing crops
The second one: They thought that Lincoln would end slavery
Explanation:
Answer:
d. neurotransmitter
Explanation:
In this definition, Anna was very close to successfully describing long-term potentiation. However, her definition is inaccurate because she mistook neurons for neurotransmitters. Long-term potentiation is the strengthening of synapses (or the enhancement of communication) between two neurons. These patterns of synaptic activity produce a long-lasting increase in signal transmission. This phenomenon occurs thanks to synaptic plasticity, which is the ability of chemical synapses to change their strength.
