Answer:
B
Explanation:
XX is female they produce eggs. XY is male. they produce sperm
Answer:
Vaccinations
Explanation:
For example, if a disease has an R0 of 18, a person who has the disease will transmit it to an average of 18 other people. That replication will continue if no one has been vaccinated against the disease or is already immune to it in their community. So if you have (for example) a vaccination then you're less likely to get it, resulting in a lower R0
The nuclide represented as X is thorium and this is an alpha decay where an alpha particle is removed off.
<h3>What is nuclide?</h3>
A kind of atom or nucleus which is represented by a specific number of protons and neutrons.
The equation given represents an alpha decay. In an alpha decay, an alpha particle is removed off.
The atomic number of the parent nuclide is more than the daughter nuclide by two units and the mass number of the parent is more than that of the daughter nuclide by four units.
Thus, the x is thorium.
For more details regarding nuclide, visit:
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The correct answer is <span>D) power company - produces energy.
The Mitochondria produce the energy used by the other parts of the cell - called the ATP - in a process called the Krebs cycle. The Krebs cycle produces ATP - like the energy that a power plant produces and a secondary product is </span>

, just like typical power plants also produce

while producing energy. Both in mitochondria and in power plants, the more energy is produced, the more

!
Answer:
it will result in reduced genetic diversity within the spedes