All matter is composed of Atoms.
All matter is primarily composed of atoms, which are exceedingly small particles.
Atoms are the basic building blocks of matter and the smallest units of an element that retain all of the properties of that element.
They consist of subatomic particles - protons, neutrons, and electrons.
Evidence of this composition dates back to ancient Greek philosophers like Leucippus and Democritus who proposed that matter was constituted of 'atomos', the Greek word meaning indivisible.
Matter essentially occupies space and has a mass. It is made up of elements - substances that are chemically indivisible.
In total, 118 elements are defined, but only around 92 occur naturally.
A macroscopic sample of any element contains an incredibly large number of atoms with identical chemical properties.
These atoms can combine in various ways to form molecules, further forming cells, tissues, organ systems, and organisms.
Learn more about Atoms here:
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Wind in the atmosphere and currents in the ocean are caused by uneven heating that produces convection .
Explanation:
An element is defined as a substance that consists of same number of atoms with same atomic number.
An element by any chemical means cannot be broken down into its simpler molecules or substances.
Atomic number means the number of protons present in an atom.
Therefore, every atom of the element carbon has 6 protons.
the answer is d. on ed2020
because the probability of hemophilia would be 1:2
because the probability of hemophilia would be 100%
Answer:
Because the probability of hemophilia would be 1:4
Explanation:
Hemophilia is a disease that comes with a sex chromosome (pair 46).
It is a recessive allele associated with chromosome X, women have two X chromosomes they can carry it, but they don't have it because they have another dominand allele non-hemophilic.
If you draw a Punnet square with a non-hemophilic father and a carrying mother, you'll found you have 1:4 chances of having a baby boy with hemophilia.
Carrying mother = X(H)X(h)
Father = X(H) Y
A carrier woman has a 50% chance to pass the hemophiliagene to her son. Hemophilia, a sex-linked disorder, impairs blood clotting leading to excessive bleeding. Therefore, surgeries like circumcision that cause significant bleeding should be avoided.
A woman carrying the hemophilia gene can indeed pass it on to her son. Hemophilia is a sex-linked genetic disorder predominantly occurring in males. The reason being, the defective gene causing this condition is located on the X chromosome, and males have one X chromosome received from their mother and one Y chromosome from their father. If the X chromosome obtained from the mother carries the hemophilia gene, the male child will develop the disease. This is because males lack a second X chromosome that can compensate for the one carrying the defective gene.
If a woman who carries the hemophilia gene has a son, there is a 50% probability that the son will have hemophilia. That's why it's essential for such a woman to take precautionary measures. Circumcision is a surgical procedure which involves significant bleeding. In cases of hemophilia, blood clotting is impaired, leading to a high risk of excessive and prolonged bleeding. Therefore, it would be a wise decision to avoid circumcision where there is a risk of the boy having hemophilia.
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a. a protostar
b. a black hole
c. a neutron star
d. a white dwarf star