Match the scientist to his contribution to the atomic theory. match term definition j. j. thomson a) atoms are the smallest unit of an element. john dalton b) protons are at the center of an atom. ernest rutherford c) electrons are in orbital levels. niels bohr d) electrons are scattered within the atom.

Explanation:

J. J. Thomson     Electrons are scattered within the atom.

J.J. Thomson carried out experiment on the discharge tube in 1897 which led to the discovery of electrons as a subatomic particle. During this time, the whole atom was thought to be made of only electrons.

John DaltonAtoms are the smallest unit of an element.

John Dalton in 1808 proposed that atoms are the smallest indivisible particles of an element.

Ernest RutherfordProtons are at the center of an atom.

In 1911, Ernest Rutherford performed experiments using gold foil. He discovered that an atom is made up of a massive center made up of positively charged particles called protons.

Niels BohrElectrons are in orbital levels.

Bohr in 1913 suggested that electrons are in specific spherical orbits around the central nucleus.

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.