The answer is; TRUE
When the saturated solution is allowed to cool slowly, the molecules in the solution have the time to displace impurities that try to attach to the growing lattice because they fit perfectly, geometrically then the impurities. This way the lattice grows larger.
If the solution is cooled fast, the impurities have little time to be displaced from the lattice hence the geometry of the crystal lattice is disturbed and the crystals are smaller and less pure.
Only eukaryotic cells have a nucleus so its dna is in the nucleus but in prokaryotic cells the dna is in the cytoplasm
Answer:
it depends on birth rate and population history of the city or country
Explanation:
In exponential growth, a population's per capita (per individual) growth rate stays the same regardless of population size, making the population grow faster and faster as it gets larger. In nature, populations may grow exponentially for some period, but they will ultimately be limited by resource availability.
The correct answer is Robert Koch.
He was a German scientist and is globally known as one of the fathers of microbiology and bacteriology. He is famous for his work with anthrax, finding out the causative agent of the fatal disorder to be Bacillus anthracis. He received a Noble prize for his work in 1905. He also gave four postulates known as Koch's postulates.
The four characteristics that were formulated by Robert Koch to determine the causative agent of a specific disorder are:
1. The pathogen or microorganism must be must be found in all the cases of the disorder.
2. The pathogen can be withdrawn from the affected host and can be developed in pure culture.
3. The pathogen from the pure culture must result in a disease when incorporated into a vulnerable, healthy laboratory animal.
4. The pathogen must be reisolated from the novel host and demonstrated to be similar to the originally inoculated pathogen.
Answer:
When an action potential reaches the end of an axon, the nervous terminal or the varicosities release neurotransmitters. These bind to receptors on the postsynaptic neuron. Eventually, the neurotransmitters are removed from the synapse. Some are reabsorbed by the presynaptic neuron or sending neuron, a process called reuptake, and some are broken down, in a process called enzymatic degradation.
Explanation:
Neurotransmitter liberation occurs from the nervous terminal or varicosities, in the neuronal axon. There are vesicles in the sending neuron that have neurotransmitters in their interior. When an <em>action potential reaches the nervous terminal</em> or the varicosities, it occurs a notable increase in the <em>neurotransmitter liberation</em> by exocytose. This is possible because calcium channels open letting the ion in the cell through the membrane, and letting the neurotransmitter out to the synaptic space. The molecule binds to its receptor in the postsynaptic neuron. This receptor is a <em>protein structure that triggers an answer</em>. As long as the signal molecule is in the synaptic space, it keeps linking to its receptor and causing a postsynaptic answer. <em>To stop this process</em>, the <em>neurotransmitter must be taken out from the synaptic space.</em> There are two mechanisms by which the neurotransmitter can be eliminated:
Enzymatic degradation/deactivation: In the synaptic space, there are <em>specific enzymes that can inactivate the neurotransmitter </em><em>by breaking it down or degrading it</em><em>.</em> In this case, the new molecule won’t be able to bind to the neurotransmitter receptor.
Reuptake: There are receptors located in the presynaptic membrane that can capture de molecule to store it back in new vesicles, for posterior use. These <em>transporters are active transport proteins</em> that easily recognize the neurotransmitter.