As a result of global warming, the average surface <u>temperature of Earth is increasing</u> and the <u>sea ice</u> (in the polar regions) is <u>melting</u>, which in turn is effecting the oceans, animals, plants and ecosystems, agriculture, etc.
The Earth's temperature has increased by 1.4 degrees Fahrenheit over a century and is causing the ice to melt in the polar regions. This melting of ice is causing the sea levels to rise which means more heat is absorbed by the water, thus increasing the temperature of the oceans.
These changes in the temperature are making it difficult for many species to survive and some of the animals and plants have already started moving to higher altitudes as a result of this.
Acetylcholine is a chemical that is found between the nerve synapses, or gaps, between nerve cells. When activated, it causes the contraction of skeletal muscles and activates glandular functions in the endocrine system. Think of acetylcholine as a mailperson; residents cannot receive their mail until he or she comes and delivers it to the mailbox. Like mailpersons who deliver the mail and move on to the next house, acetylcholine acts quickly and does not hang around. As a result, acetylcholine is rapidly broken down by another chemical substance called cholinesterase.
Acetylcholine was the first neurotransmitter scientists discovered, as well as the most abundant neurotransmitter in the body. A neurotransmitter is a chemical that is released by a neuron, or nerve cell, that sends a signal to another neuron across a synapse. The neurotransmitter binds to receptors to affect how the signal is received. The purpose of the neurotransmitter is to either amplify or inhibit the signals sent between the neurons.
Acetylcholine plays an important role in the signal of muscle movement, sensation of pain, learning and memory formation, the regulation of the endocrine system and rapid eye movement (REM) sleep cycles.
<u><em>Seeds are found in both flowering and non-flowering plants. Both plants reproduce, the difference being that the former reproduces through blossoms, whereas the latter reproduces through seeds or spores. Because both flowering and non-flowering plants have chlorophyll, they can both photosynthesise.</em></u>
The stomach can sometimes expires problem when digesting hard foods such as cheese and may result in things such as heart burn. an antacid can counter the ragging stomach acids.
