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
Alina [70]
3 years ago
15

A reseacher was studying mutations in bacteria.he found that certain bacteria had changes in their dna that allowed them to be r

esistant to antibotics.this research is an example of. The mutation will lead to
Biology
1 answer:
AleksAgata [21]3 years ago
3 0

Answer: 1.B). Evolution genetics.

2.C). Less Bacteria becoming resistant to the specific Antibiotics .

Explanation:

Evolution genetics is field of science, which includes study of genetic variations that lead to evolutionary changes in organisms. As some bacteria had changed their DNA that led to development of antibiotic resistance in them.

Due to antibiotic resistance, certain bacteria, in which changes in DNA take place, become resistant against some type of antibiotics and those antibiotics are no longer effective to prevent or kill them

Thus, the correct options to be filled in the blanks are option (B) and option (C).

You might be interested in
At times during a month, there is no moon visible from earth, even on a clear night. Which phase of the moon is this?
ArbitrLikvidat [17]
A new moon
Definition of new moon:
the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.
8 0
4 years ago
When one atoms electron is given up to another atom both atoms become what?
Amiraneli [1.4K]
When an electron<span> moves from </span>one atom<span> to </span>another<span>, </span>both atoms become<span> ions.</span>
4 0
3 years ago
Question 26
Anettt [7]

Explanation:

cholesterol helps keep the plasma membrane hydrophobic.

I think this is the answer but I am not sure if it's correct or wrong

but ik that plasma membrane has a little bit of hydrophobic and hydrophilic regions

3 0
2 years ago
Which statements describe functions of antibodies? Select two options.
vodomira [7]

Answer:

This question lacks options, options are:

A.They maintain the cell’s shape.

B.They regulate cell processes.

C.They protect the body from infectious agents.

D.They signal the immune system to destroy pathogens.

E.They speed up biochemical reactions.

F.They send electrical signals.

The correct answers are C and D.

Explanation:

B cells and T cells use different biological weapons to attack the pathogen. The first secrete proteins called antibodies, which are distributed via the blood or the exposed surfaces to the environment, such as mucous. Antibodies are glycoproteins that circulate in the bloodstream looking for antigens that cause some type of damage to the body. Antibodies recognize and neutralize pathogens in a highly efficient way. Once the antibodies are produced, they remain circulating in the bloodstream for several months, which generates immunity for a long period of time to a certain antigen, in other words, they are capable of recognizing other molecules (antigens) in a very specific way and forming stable complexes with them (immune complexes). Its appearance in plasma is part of the adaptive immune response, in what is known as a specific humoral response, constituting a very effective defense against pathogens.

3 0
3 years ago
In a tabular form state the sources, functions and deficiency of fat soluble vitamins​
GaryK [48]

Answer and Explanation:

Soluble vitamins are vitamins A, D, E and K.

Vitamin A is easily found in animal foods such as eggs, milk, cheese, meat, among others. It has the function of improving vision, producing antioxidants and improving immunity. its deficiency causes nocturnal tracking and susceptibility to infections.

Vitamin D has the sun as its major source, but it can also be found in fish, seafood, liver, mushrooms and meat. It is important for the growth and strengthening of bones, growth regulation, metabolism, insulin production and strengthening of the cardiovascular, muscular and immune systems. Its deficiency can provoke muscular and bone pains, spasms, intense weakness and calcium deficiency.

Vitamin E has many sources, among which we can mention wheat, vegetable oils, nuts, sunflower seeds, bananas, soybeans, egg yolks, almonds, eggs, spinach, lettuce, among others. Its main function is to act as a powerful antioxidant, slowing premature aging and diseases such as cancer, Parkinson's and cataracts. Its deficiency can cause loss of motor coordination, weakening of the muscles and anemia.

Vitamin K can be found in lettuce, spinach, mustard, broccoli, cucumber, turnip, asparagus, okra, liver, among others. It is important in blood clotting and calcium fixation. Its deficiency can cause defective clotting and bleeding.

6 0
3 years ago
Other questions:
  • Use the cellular diffusion lab to help you answer the two questions. There is a larger number of a hydrophilic molecules on the
    13·1 answer
  • The U. S House of Representatives voted to outlaw a specific type of biological experimental procedures. Proponents of the bill
    9·2 answers
  • What determines the number and type of organelles in a cell
    15·1 answer
  • Which of the following is extrusive? <br><br>Magma <br>Lava <br>Laccolith <br>Batholith
    10·2 answers
  • Which of the following is an example of homeostasis?
    13·1 answer
  • Which of the following is the best definition of empirical evidence?
    14·2 answers
  • What happens during the S phase of the cell cycle?
    11·1 answer
  • Society expects scientists to follow ethical practices and meet many
    14·1 answer
  • A plant growing in an area where it is not required is called?
    10·2 answers
  • Causes and Solutions for Water pollution(Grade-7) ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!