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
vova2212 [387]
2 years ago
15

Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she notices that they fight for

the best pieces and some do not get any. All living things struggle to get the necessary amount of food, water, and shelter. What is the term for this struggle? * A. overproduction B. natural selection C. variation D. Competition ​
Biology
1 answer:
Katyanochek1 [597]2 years ago
5 0

Answer:

D. Competition

Explanation:

Hope u guys have great day. ✌❤

You might be interested in
Which of the following best describes how the first organic molecules on the early Earth may have been formed?
GuDViN [60]
Wow! this si a huge question but analyzing all the datils from ths option you give me I have to say that C option: <span>Heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules, is the one that gets closer to what the scientists have said recently. Take into account for example, the examinations of Dr. Stanley Millers. I think this can help you</span>
4 0
3 years ago
Chimeric mice are generated where approximately 50% of the cells in the animal are genetically MHC class I-deficient.
Firdavs [7]

Chimeric mice are generated where approximately 50% of the cells in the animal are genetically MHC class I-deficient. The other 50% are deficient for the herpes virus receptor, HVEM, but do express MHC class I molecules. When these mice are infected with herpesvirus by intraperitoneal injection, a robust virus-specific CD8 T cell response is detected at day 7 post-infection in the spleens of the infected mice.

Chimeric mice are generated where approximately 50% of the cells in the animal are genetically MHC class I-deficient - Immunobiology

: a branch of biology concerned with the physiological reactions characteristic of the immune state

To learn more about immunobiology

https://brainly.in/question/6400587

#SPJ4

8 0
1 year ago
Why are the moon’s craters preserved?
Bingel [31]
The main reason is that there is no atmosphere. This means that there is no weather and no weather means that there is no wind or rain. Wind and rain are main components of erosion and because there is no erosion, craters can stay preserved for a very long time.

Hope this helps!! 
7 0
3 years ago
What effect would constriction of the blood vessels have on the body?
zheka24 [161]
D because all your veins ate nearly in your heart and if your heart stops they stop too
3 0
3 years ago
Water can act as either a(n)____ or a ____.
kobusy [5.1K]
B
water is a miscible liquid which mean other liquid can dissolve in it.Also aqueous solution can dissolve in it.
5 0
3 years ago
Other questions:
  • List three specific functions of capsules.
    8·1 answer
  • What Is Newtons Law And How Many Laws Are There.?
    6·2 answers
  • What is the Black Hills Institute ​
    15·1 answer
  • Is wind the weakest <br> agent of erosion
    10·2 answers
  • Which part of the diagram represents the nucleus?
    14·1 answer
  • Analyze Some species of cichlid fish hold their fertilized eggs inside their mouths until they hatch.
    14·2 answers
  • What is fishery, and mention two classes of fish based on their habitat​
    14·1 answer
  • Which quantities define momentum?
    15·1 answer
  • In humans, the allele for Huntington's disease is dominant. What genotype would a pure breeding human have?
    10·1 answer
  • Biology question: first correct answer gets Brainly crown
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!