Autotrophs are organism that is a Heterotroph.
Answer:
False.
Explanation:
Neurotransmitter release occurs from the nervous terminal or varicosities in the neuronal axon. When an action potential reaches the nervous terminal, the neurotransmitter is released by exocytose. The molecule binds to its receptor in the postsynaptic neuron, triggering an answer. As long as the signal molecule is in the synaptic space, it keeps linking to its receptor and causing a postsynaptic response. To stop this process the neurotransmitter must be taken out from the synaptic space. There are two mechanisms by which the neurotransmitter can be eliminated:
• Enzymatic degradation/deactivation: There are specific enzymes in the synaptic space, which are in charge of inactivating the neurotransmitter by breaking or degrading it. The enzyme acetylcholinesterase prevents ACh from continuing to stimulate contraction.
• Reuptake: Receptors located in the presynaptic membrane can capture de molecule to store it back in new vesicles for posterior use. These transporters are active transport proteins that easily recognize the neurotransmitter.
Digestive enzymes secreted by the pancreas are:
trypsin (a protease)
lipase
maltase
Hormones secreted by the pancreas are:
insuline
glucagon
Answer:
It was found on Earth’s surface.
Explanation:
Igneous rocks are formed either<em> on the surface of the Earth</em> or <em>deep in the Earth's crust.</em> Those formed on the surface of the Earth are called <em>"Extrusive Igneous Rocks" </em>while those formed in the crust are called<em> "Intrusive Igneous Rocks." </em>
An igneous rock which has<em><u> small, dark crystals</u></em> is an extrusive igneous rock (this makes the first choice incorrect). It was formed through "rapid cooling," thus, it's texture is<em> fine</em> (this makes the last two choices incorrect).
Since it is an extrusive igneous rock,<u> it can be found on the Earth's surface. </u>This makes the third choice correct.
