1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ahat [919]
2 years ago
10

An atom that has 19 protons, 21 neutrons, and 18 electrons has a mass of ____? *

Biology
1 answer:
Paul [167]2 years ago
3 0

Answer:

19 - Potassium - K.

Explanation:

You might be interested in
What type of mutation is shown in the sequence below
almond37 [142]

Answer:

Single nucleotide deletion

Explanation:

Original DNA sequence:

A T A C G G T A

T A T G C C A T

Mutated DNA sequence:

A T C G G T A G

T A G C C A T C

​In the mutated sequence, there is a nucleotide missing. It goes from ATACGGTA to ATCGGTAG. The A nucleotide is gone. This represents a single base pair deletion.

Even though it is only one base, this changes the way the entire sequence is interpreted. The DNA transcribed into an mRNA and then translated into a protein by reading triplet codons which correspond to specific amino acids.

So while the initial sequence would be read as:

ATA, CGG, TA...

The new sequence would be read as:

ATC, GGT, AG...

So the sequence of the protein is completely altered.

7 0
3 years ago
Name and/or describe as many human body systems as you can. what is the function of each body system and what are some of the ma
Travka [436]

Answer:

The endocrine system is a collection of specialised organs (endocrine glands) scattered throughout the body that act to produce hormones.

Explanation:

3 0
1 year ago
he eastern coral snake and texas coral snake look almost identical and are often mistaken, but they are actually different speci
Degger [83]

Answer:

They will have sterile offspring.

Explanation:

7 0
3 years ago
Read 2 more answers
What is the function of the liver?*
vampirchik [111]

Answer:

The answer is aiding in chemical digestion of fats

Hope this helps you

7 0
3 years ago
Three characteristics of enzymes​
choli [55]
1)Enzyme is a protein. The main material of an enzyme is protein
2)It is easily influenced, by environmental change. Environmental factors include temperature, pH, and inhibitor.
3)It acts as catalyst The enzyme functions in accelerating chemical reaction, but the enzyme itself does not change after the reaction ends.
6 0
3 years ago
Read 2 more answers
Other questions:
  • In order for the growth rate to remain constant what must happen to the birth rate?
    11·1 answer
  • What is the basic unit of life?
    7·2 answers
  • If Susan and Henry continued to have children they would always have type B blood. What are Susan and Henry's genotypes
    15·1 answer
  • Someone do this will give 200 points read the directions!!!
    10·2 answers
  • In mead's model, which sequence correctly orders stages of the developing self answerimitation, play, game, generalized otherimi
    12·1 answer
  • coral reefs are especially sensitive to environmental disturbances. what are some of the factors that can damage coral reefs?
    11·1 answer
  • The characteristic most selected for in beef cattle is
    7·2 answers
  • List two ways the sun affects weather and climate. Explain each
    14·1 answer
  • Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A sample of individuals is categori
    11·1 answer
  • What is one likely reason for why a gram-stain staphylococcus epidermidis would appear pink under the microscope? why might esch
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!