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
crimeas [40]
3 years ago
13

Explain the meaning of evolution​

Biology
1 answer:
Mkey [24]3 years ago
4 0
The meaning of evolution is the process of growth and development and how it has changed from the past.
You might be interested in
Which of the following is not a main characteristic of a mineral?
N76 [4]
D. Man-Made is the answer
4 0
3 years ago
The respiratory system branches like the circulatory. Oxygen and carbon dioxide diffuse between the end of these branches and th
Feliz [49]

Answer:

1. Ends of the respiratory branches are called alveoli.

2. C. To control blood flow to different areas of the body depending on activities

Explanation:

1. The trachea divides into left and right primary bronchi which in turn divide multiple times upon entering the lungs and make the bronchial tree.

The final branches of the bronchial tree are the terminal bronchioles that lead to alveoli. The alveoli are the balloon-shaped structures and serve as the site of gas exchange between the blood and inhaled air.  

2. The opening and closing of sphincters of capillary beds regulate the direction of blood flow. The opening of sphincters allows the blood to flow into associated branches of capillary beds while closed sphincters direct the blood from arterioles to venules via thoroughfare channel.

This local change in blood flow is responsible for the autoregulation of blood flow to different tissues to match their respective metabolic demands. For example, during physical activity, more blood is directed to skeletal and cardiac muscles.

8 0
3 years ago
Write a paragraph (at least 5 complete sentences) about the positive experiences during your Spring Break 2021.
DanielleElmas [232]

Answer:

your gonna have to use your own resources (memory etc.) to tell about your spring break... think about anything you saw or did or whatever including these terms:)

3 0
2 years ago
1. Identify the process depicted in the diagram above. ​
kari74 [83]

Answer:

The process depicted in the diagram above is explained below in complete details.

Explanation:

1 asexual generation

2. cytokinesis

3. karyokinesis

4.fission

(a) Amoeba

(b) in repetitious fission many elements modifications to offspring ( plasmodium ( while in amoeba only individual sections to create two separate daughter cell

(c) asexual reproduction

ii in leishmania you can totally cut three sections and it changes to a new organism and in amoeba, it can be cut wherever.

7 0
3 years ago
Why do the cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin?
Fofino [41]

Answer:

The bacterial cells transformed with PUC18 and plasmid lux grow in the presence of ampicillin, because the DNA of bacterial cells had incorporated parts of plasmid DNA and became ampicillin resistant.

Explanation:

The bacteria showing this property is mainly known as Escherichia coli (E. coli). These bacteria cells generally shows no growth in presence of antibiotic like ampicillin. Whereas when these cells are treated with PUC 18 and plasmid lux, then the bacterial DNA undergo certain transformation due to incorporation of strands of DNA of plasmid into them. This transformation make them resistance to ampicillin, when they are cultured in agar media with ampicillin in it.

3 0
3 years ago
Other questions:
  • Which vitamin aids in the conversion of tryptophan to niacin?
    14·1 answer
  • A student was given a task to observe a bacterial specimen made from dilute yoghurt and sketch the shape of bacteria seen. He dr
    6·1 answer
  • Which of the following is an advantage to co-evolving with a pollinator, rather than using wind pollination?
    14·1 answer
  • Why does water roll off the surface of a leaf? A. Because water is attracted to nonpolar molecules B. Because water is a nonpola
    5·2 answers
  • Water vapor releases energy and changes<br> to a liquid in the atmosphere.<br> what is this called
    15·1 answer
  • What is true of a catalysis
    6·1 answer
  • Sheet metal, treated lumber, and corn syrup are all examples of
    7·1 answer
  • What is the basic equation for photosynthesis
    6·2 answers
  • 1. What is the difference between primary waves (P-waves) and secondary waves (S-waves)?
    10·1 answer
  • What is lymphatic system ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!