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
Zanzabum
1 year ago
15

What is a scientific explanation of a law?

Biology
1 answer:
marishachu [46]1 year ago
4 0

Answer:

an idea that can't be proven but can explain some phenomena

Explanation:

sorry if I am wrong

You might be interested in
During the process of biological ______________, the concentration of pollutants, such as DDT or mercury, is multiplied as it pa
Zanzabum
During the process of biological magnification , the concentration of pollutants, such as DDT or mercury, is multiplied as it passes up a food chain.
6 0
3 years ago
Plants don't move arou d so why don't move around,so why do they need energy
Murrr4er [49]

The plant needs energy to grow and prosper

7 0
3 years ago
Read 2 more answers
Briefly describe how amniocentesis and chorionic villi sampling are used in genetic screening.
bearhunter [10]

Answer:

Amniocentesis is an invasive method that involves the aspiration of 10-20 ml of fetal water through the abdominal wall under ultrasound-guided control. In most cases, the procedure is performed around the 16th week of gestation. The fetal water sample contains fetal cells, mostly cells of fetal skin and the epithelium of the urinary tract.

Chorionic Villus Sampling (CVS) biopsy is performed between weeks 11 and 12 of gestation. During biopsy, with ultrasound guidance, the tissue of the chorionic fossa is aspirated mainly across the abdomen (transabdominal pathway). The biopsy specimen is of fetal origin and belongs to the outer layer of blastocyst cells or the trophoblast (outer layer of the placenta). Very often, the biopsy specimen contains tissue of the decidua (mucous membrane of the uterus) that is of maternal origin, and it is necessary to remove the maternal tissue before any treatment of the sample.

Explanation:

The amniocentesis procedure carries a risk of miscarriage of 0.5-1%.  After aspiration of the fruit of the water, the sample is centrifuged to separate the cells from the amniotic fluid. Separate cells are seeded on a nutrient medium (cell culture) that stimulates cell growth. After about 14 days, the cell culture is further used for various genetic or biochemical analyzes such as karyotyping.

The advantage of chorionic biopsy is the amount of biological material, which is sufficient for the whole a number of different laboratory procedures. Also, a great advantage is the timing of the procedure as it allows diagnosis in the first trimester of pregnancy, but the chorionic biopsy procedure itself carries a risk of miscarriage of 1-2%.

3 0
3 years ago
The relative concentration of water in a hypotonic solution is _____.
wel
<span>Relative concentration of water in a hypnotic solution is high</span><span />
3 0
3 years ago
The response of plants to periods of light and dark is called ______________. photoperiodism nocturnal variation daily activity
Alex73 [517]

Answer:

Photoperiodism

Explanation:

The term "photoperiodism" was coined to describe a plant's ability to flower in response to changes in the photoperiod: the relative lengths of day and night. Because flowers produce seeds, flowering is crucially important for the plant to complete its life cycle.

7 0
3 years ago
Other questions:
  • The client's cbc with differential reveals small-shaped hemoglobin molecules. the nurse expects to administer which medication t
    8·1 answer
  • Balance the equation, if necessary, for the reaction between zinc and acetic acid. Zn + HC2H3O2 → Zn(C2H3O2)2 + H2
    14·1 answer
  • In which atmospheric layer does most of the greenhouse effect occur answer?
    8·2 answers
  • What is the name of the ionic compound NaBr?
    10·1 answer
  • Which organ is part of the cardiorespiratory system? Lungs brain liver kidney question 3?
    13·1 answer
  • which definition of the word waste has the most neutral connotation A spend unwisely B useless land C lose strength D unused par
    7·1 answer
  • How do the cilia and flagella of protists differ from bacteria
    5·1 answer
  • How does a comparison of the embryos provide evidence of evolution
    5·1 answer
  • Que funcion realiza la celula vegetal que la aninal no podria realizar​
    14·1 answer
  • Which of the following is NOT a risk factor for HIV/AIDS?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!