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
katovenus [111]
3 years ago
12

Which of the following must be met for a scientifically valid sample? Subjects are selected:

Biology
2 answers:
ddd [48]3 years ago
6 0

Answer:

The correct answer is: A. and D.

Explanation:

  • In order to scientifically validate a sample, it is necessary that,
  1. The entire population under study should be considered to obtain an average or a mean data. If only a part of the population is considered then the result obtained would be a biased one. A biased data will not represent the entire population and so it would be incorrect.
  2. The sample choice done must be at random covering all the areas of the population to get the accurate result. This is because random selection lowers the possibility of getting biased.

amid [387]3 years ago
3 0

Answer:

A. and D. For apex :) good luck

Explanation:

You might be interested in
Help me match these please
ruslelena [56]
Interphase- D prophase-C anaphase-A telophase/cytokinesis-E
8 0
2 years ago
The events of childbirth are associated with the process of positive feedback. describe these events.
sveticcg [70]
One example of a positive feedback loop in childbirth is contractions. When the contractions start, they produce oxytocin, which stimulates stronger contractions, which produce more oxytocin.
3 0
3 years ago
An animal ate a plant and digested sugars stored in the plant's leaves. The sugars provided energy
erastova [34]

Answer:

Mitochondria

Explanation: Mitochondria are oblong shaped organelles found in the cytoplasm of all eukaryotic cells. In plant cells, they break down carbohydrate and sugar molecules to provide energy, particularly when light isn't available for the chloroplasts to produce energy.

4 0
2 years ago
¿Qué relación tienen las enfermedades metabólicas en la producción de hormonas reguladoras de las emociones?
fenix001 [56]

Answer:

no tengo una respuesta solo quiero puntos

Explanation:

7 0
2 years ago
we can block light by placing obstacles in its path, but it’s much more difficult to block sound. why?
krek1111 [17]
It's harder to block sound because sound waves and transverse waves, causing the sound to bounce off objects. This isn't the same with light.
8 0
3 years ago
Other questions:
  • Do my eyes have a faint fold?
    5·2 answers
  • The vaccine for chickenpox is: select one:
    12·1 answer
  • Which of the following is true about the products formed during photosynthesis?
    6·2 answers
  • I need answers to #2
    13·1 answer
  • The chaparral biome has adapted to suppress wildfires. Please select the best answer from the choices provided
    6·2 answers
  • How are clouds and fog related to precipitation?
    15·1 answer
  • How many cells are needed to create a living organism?
    10·2 answers
  • Mike earned scores of 88,91,75,and 72 on four math tests determine his score on the fifth test if his average for five tests was
    14·2 answers
  • What does competition mean and how might you see competition in an ecosystem?
    13·1 answer
  • What is inside your capillaries that carries oxygen to your heart?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!