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
vredina [299]
3 years ago
8

Can you determine which instances reflect a valid experiment or conclusion? Check only those that are valid.

Biology
1 answer:
Orlov [11]3 years ago
4 0

Answer:

Only options A (first one) reflects the instances with valid experiment or conclusion.

Quality of any experiment depends upon two things reliability and validity. Reliability is measure of regeneration of results every time an experiment is performed under specific conditions.

Validity is measure of accuracy of results of an experiment. It can be check by two ways: internal validity (checks the design of the experiment) and external validity (checks if the conclusion is the real explanation of the phenomenon).

Now, in marine biologist experiment, he concluded the results only after one breeding season. This makes his results unreliable as it might have happened by chance.

Similarly, in cola experiment the taste was only checked by one candidate i.e. Karl. He might have problem in his taste buds. In addition, the temperature of cola can also affects its taste which is not taken care of in the experiment. Hence, it is not the valid experiment.

Similarly. Jeanette could use more plants for her experiment and Robert just followed only one instruction. He didn't perform any experiment.

<h2>* BRAINLIEST WOULD BE V APRECIATED :) </h2>

You might be interested in
According to cell theory, what do each of the following organisms have in common?
mafiozo [28]

Answer:

Hope it helps!!

Explanation:

According to cell theory, what do each of the following organisms have in common? Each organism is able to photosynthesize. They are all made up of the same kinds of atoms. ... Cells are the basic unit of structure for each organism.

7 0
3 years ago
Visual Check
aksik [14]

Answer:

They should all have purple flowers.

Explanation:

This is because plants use the reproduction called mitosis, which means that the child will be a direct copy of the parent.

Hope this helps! :)

8 0
2 years ago
Describe changes in body size, proportions, and skeletal maturity during middle childhood.
iragen [17]
The changes that occur in body size, proportions, and skeletal maturity during the middle childhood include;  Bones continues to strengthen and broaden, permanent teeth replace the primary teeth, normally a third of school age children suffer from malocclusions, making braces common by the end of elementary school.  Additionally, the children's growth is slow and regular though large individual and ethics variations exists in the physical growth. <span />
8 0
3 years ago
You find a beaker filled with an unknown clear liquid on your lab bench. what should you do?
Anastaziya [24]
Treat the liquid as if it is hazardous. Inform your teacher/instructor so you will be notified of the proper disposal technique.
8 0
3 years ago
Cell engulfs molecules in cell "drinking":
RSB [31]
These are the following answers to the items

cell engulfs molecules in cell "drinking": pinocytosis<span>

molecules helped by protein; move insoluble molecules across plasma membrane: </span>facilitated diffusion
<span>
molecules move in and out freely from high to low concentration: </span>passive diffusion
<span>
cell engulfs microorganisms in cell "eating": </span>phagocytosis<span>

molecules "pumped" in or out from low to high concentration: </span>active transport<span>

oxygen, carbon dioxide: </span>passive diffusion<span>

transports sodium, potassium: </span>active transport<span>

transports glucose, amino acids: </span>pinocytosis
8 0
3 years ago
Other questions:
  • Even with large quantities of food available, people in the United States can experience diseases such as heart disease, stroke,
    14·1 answer
  • Is Natural law theory is inconsistent with a theory of human rights. True / False
    10·1 answer
  • PLEASE HELP
    9·2 answers
  • A fellow employee is frustrated and tense after a difficult morning. your best reaction is to ____________.
    11·2 answers
  • PLEASE HELP
    6·1 answer
  • Give some example of microorganisms<br>ASAP​
    14·1 answer
  • The photo shows a bungee jumper falling towards the sky,
    15·2 answers
  • Which of the following phrases describe the function of the digestive system?
    8·1 answer
  • Prions are
    11·1 answer
  • #3 What percentage of mammals extinction is caused by habitat loss?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!