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
irina [24]
3 years ago
12

The researchers also found that after 150 days, the relative change in virulence of B. thuringiensis was greater than the relati

ve change in the resistance in C. elegans when the organisms were cultured together. Provide ONE reason that the relative change in B. thuringiensis virulence was greater than the relative change in C. elegans resistance.
Biology
1 answer:
Debora [2.8K]3 years ago
7 0

Answer:  pathogen–host coevolution

Explanation:

A major driver of evolution is Reciprocal coevolution between host and pathogen. Rather than pathogen, one-sided adaptation to a nonchanging host, high virulence specifically favoured during pathogen–host coevolution. In all of the independent replicate populations under coevolution, the pathogen ( B. thuringiensis ) genotype BT-679 with known nematocidal toxin genes of C. elegans and high virulence specifically swept to fixation but only some of them go under one-sided adaptation,

so relative change in B. thuringiensis virulence was greater than the relative change in C. elegans resistance is due to the elevated copy numbers of the plasmid containing the nematocidal toxin genes .

You might be interested in
Antigen processing and presentation antigen processing and presentation is a way for a cell to give information about its activi
vova2212 [387]
Is a way for a cell to give information about its activities.
7 0
3 years ago
Strep throat and bacterial pneumonia are examples of __________.
Fittoniya [83]

Strep throat and bacterial pneumonia are examples of

The correct answer is a. bacterial communicable diseases.

Strep throat is a bacterial infection which has symptoms such as sore and scratchy throat. The causative agent of strep throat is <em>Streptococcus pyogenes </em>and gets spread by  contact by the secretions of the respiratory tract of the infected person if the person  sneezes or coughs.

The bacterial pneumonia is commonly caused by <em>Streptococcus pneumoniae. </em>The bacterial pneumonia is a community acquired pneumonia. The most common way it is caused when the bacteria aspirates from the oral cavity or by breathing infected air droplets having pneumonia. The bacteria can enter the bloodstream and deposits in the lungs causing pneumonia.

If a doctor wanted to find out the number of white blood cells in a patient's blood, he or she would order a(n)

The correct answer is d. complete blood count.

White blood cell count test is used to measure of the white blood cells in the patient's body. This test is included in the complete blood count test. There are different types of white blood cells present in the body and each of it has a specific percentage .


4 0
3 years ago
Read 2 more answers
One organism benefits while the other is killed is called what?
timama [110]

Answer:

Parasitism

Explanation:

A parasite enters a body of what ever animals and makes the animal weak by eating all the protein or nutrients of the animal to the parasite. So the Parasite benfits while the Animal will be weak or die

7 0
3 years ago
What is the maximum number of electrons that can be placed in the first shell/energy level?
zysi [14]

QUESTION:-

What is the maximum number of electrons that can be placed in the first shell/energy level?

A. 1

B. 8

C. 2

D. 18

Answer:

C. 2

The first shell, closest to the nucleus and with the lowest-energy electrons, is shell 1. This first shell has only one subshell (labeled 1s) and can hold a maximum of 2 electrons

3 0
2 years ago
Read 2 more answers
Use the drop-down menus to answer the questions about genetic recombination. involves the transfer of genetic material from one
Tresset [83]

The right matches are:

• Involves the transfer of genetic material from one bacteria to another ==> Genetic recombination (all 3).

• Involves scraps of genetic material ==> Transformation.

• Uses a virus to transmit genetic material ==> Transduction.

• Uses a pilus to transmit genetic information ==> Conjugation.

• Introduces new genetic material to a bacterium ==> Genetic recombination (all 3).

In molecular biology the term genetic recombination is often used as a synonym for DNA recombination, that is, the processes by which one DNA (or RNA) molecule is cut off, then joined to another.

There are three possible mechanisms in the bacterium: bacterial conjugation, bacterial transformation and transduction.

5 0
3 years ago
Other questions:
  • Ras is a GTP-binding protein involved in cell proliferation (division). In its active form, with GTP bound, Ras activates cell s
    11·1 answer
  • What chromosome is skin cancer located in?
    13·1 answer
  • Name the four levels of group organization of living things in order of increasing complexity
    5·1 answer
  • Is soil living or nonliving explain why or why not?
    7·1 answer
  • True or false. An ecosystem includes all the producers, consumers, and decomposers in an environment.
    10·1 answer
  • Which statement best describes the components of nucleic acids?
    11·1 answer
  • If a child only eats fries, What macromolecule might be deficient and how will it affect her?
    8·1 answer
  • Задание 1: a) по рисунку определите особенности формирования мужских и женских гамет у животных и растений в фазах митоза I и II
    7·1 answer
  • Describe at least two costs and two benefits of wind farms. !!!! ASAP plzz
    7·1 answer
  • Select the correct answer. In the excerpt from jack london's "the human drift", the thesis statement is expressed in these sente
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!