The aerosol can is sealed, and under pressure. Place it on a heat source, and the gas inside expands. Upon expansion with no outlet, the vessel may explode.
Pressure cookers work on this principle, as food can be cooked at higher temperatures than
100
∘
C
. Pressure cookers have safety valves, that will operate if the internal pressure becomes too high.
Rust is a form of corrosion. It occurs on numerous kinds of metals, iron being one of them. Rust forms when iron oxidizes and absorbs water. Rust is brittle in nature.
Iron on the other hand is a malleable and ductile metal. It rusts because it combines with oxygen present in the air along with moisture.
Properties of oxygen are -it is tasteless, odorless and colorless diatomic gas. It combines with iron in the presence of moisture to form iron oxide or rust.
Answer:
Acts on cells in close proximity to the secreting cell.
Explanation:
In paracrine signaling, the molecules secreted by a cell show their impact on the cells which are nearby or in very close proximity.
For example:
<u>Nerve impulse transmission from presynaptic neuron to postsynaptic neuron. </u>When ever a stimulus is detected by our body, transmission of nerve impulse occurs so that our body could respond to that stimulus accordingly. During transmission, the presynaptic neuron releases signaling molecules known as neurotransmitters in the synaptic cleft which is present in between <u>presynaptic neuron and postsynaptic neurons.</u> From synaptic cleft, these neurotransmitters reach the receptors present on the neighboring postsynaptic neurons which finally transmit the message to the muscles to generate a response to the stimuli.
Answer:
The correct answer is: extra chromosomes, missing chromosomes, and/or damaged chromosomes.
Explanation:
<u>Chromosome abnormalities</u> are a group of genetic disorders characterized by abnormalities in their chromosomes, whether <u>structural or numerical</u>. This type of condition can be detected by a karyotype.
<u>A karyotype is a laboratory technique</u> used to observe all the chromosomes of an individual to see if there are any problems in it. A karyotype is a picture of all your chromosomes.
A normal karyotype shows 23 pairs of chromosomes (46 in total).
When there's an extra chromosome, it receives the name of <u>trisomy</u> (+ the number of the chromosomal "pair" where there's the extra chromosome). For example: Trisomy 21 - Down Syndrome.
When there's a chromosome missing, that is called <u>monosomy</u> (+ the number of the pair where there's a chromosome missing).
Damaged chromosomes can lead to loss of genetic material or <u>translocation</u> of said information.