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4 years ago

The study of viruses is a part of biology because

1 answer:

8 0

D. Viruses are not considered to be living organisms but they can function inside living cells and multiply by using things in the cells. They can cause diseases in living organism and studying them is important in the medical field.

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Calculate the mass defect for oxygen-16 given this data. Round to the 5es001-1.jpg decimal place. mass of an oxygen-16 atom: 15.

Naya [18.7K]

Answer:

Explanation:

Given parameters:

Mass of oxygen atom = 15.994914amu

Mass of a proton = 1.00728amu

Mass of a neutron = 1.00866amu

Unknown:

Mass defect = ?

From the periodic table, the number of the elementary particles in a neutral Oxygen atom is given below:

Number of protons = 8

Number of neutrons = 8

Number of electrons = 8

Solution

The mass defect examines the difference between the actual mass of an atom and sum of masses of the nucleons.

The mass of an atom is concentrated in the nucleus which contains protons and neutrons. Electrons have little to no weight compared with the nucleons.

To calculate the mass defect, we first know the mass of the nucleons first:

1 proton has a mass of 1.00728amu

8 protons will weigh: (8 x 1.00728)amu = 8.05824amu

For the neutrons:

1 neutron has a mass of 1.00866amu

8 neutrons will weigh: (8 x 1.00866)amu = 8.06928amu

Mass of the nucleons = mass of protons + mass of neutrons

= 8.05824amu + 8.06928amu

= 16.12752amu

The mass defect = mass of the nucleons - mass of the atom

= 16.12752amu - 15.994914amu

= 0.132606amu ≅ 0.13261amu to 5 decimal places

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3 years ago

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Mutations can occur in any cell of the human body that contains dna. however, only mutations in ________ can be passed on to the

erica [24]

Chromosomes; chromosomes can mutate during the creation of the next generation with semen and the egg.

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3 years ago

Many substances, such as cholesterol, bind to ________ on the cell membrane, triggering endocytosis?

mixas84 [53]

I believe the answer is receptor sites, but correct me if I'm wrong.

Hope this helps!

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3 years ago

ANSWER NOW PLEASE!!!!!!The pedigree above shows the family history of the recessive blood disorder sickle-cell anemia. What are

spin [16.1K]

The pedigree above shows the family history of the recessive blood disorder sickle-cell anemia. What are the chances of the child having the desise or carrying the gene for the disease?

A. Child I has no change of having the disease and no change of caring it

B. Child i has a 50 present chance of having the disease and a 50 precent chance of carrying the disease

C. Child I has no chance of having the disease and a 50 present chance of carrying the disease

D. Child I has a 100 present chance of having the disease and a 100 present chance of carrying the disease.

Answer:

C. Child I has no chance of having the disease and a 50 present chance of carrying the disease

Hope that helps and good luck

~May

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3 years ago

How did whales evolve from land mammals? Claim,evidence,reason

AlladinOne [14]

Claim: Whales evolved from land mammals to water mammals.

Evidence: The first whales evolved over 50 million years. One of the first whales, such as Pakicetus, were land animals with long skulls and carnivorous teeth, much like many adaptable land mammals back then and today.

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3 years ago

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