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
denpristay [2]
4 years ago
5

Why if a control group is not included in an experiment is difficult to draw a valid conclusion

Biology
1 answer:
marissa [1.9K]4 years ago
3 0

you have nothing to compare your data to


You might be interested in
When the body responds to its own cells as foreign antigens this results in?
Artemon [7]

its autoimmune disease

8 0
3 years ago
Receipt of extracellular signals can change cell behavior quickly (e.g., in seconds or less) or much more slowly (e.g., in hours
balandron [24]

Answer:

A. Molecular changes such as extracellular signals on extracellular ligands can result in quick changes in cell behaviour. One example is insulin. Upon insulin binding on the receptor on the cell membrane, the cell release GLUT4 transporters (for muscle cells) to increase uptake of glucose.

B. Slow changes in cell behaviour can be observed for other lipophilic hormones or intracellular receptors such as glucocoortoid or estrogen which reacts with receptors in the cells.

C. Insulin is required to maintain a constant blood glucose level and hence levels of insulin has to be mediated in correspondence to the blood glucose levels. Fast acting signalling is thus required for homeostasis of blood glucose levels. Where for such lipophilic hormones such as steriods, glucocortoid, these hormones tend to have a longer lasting effect and hence results in a slow change.

6 0
3 years ago
Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters ta
NeTakaya
2020 answer on the edge
7 0
3 years ago
PORQUE ES IMPORTANTE QUE LA PERSONA TENGA UNA ESTABILIDAD EMOCIONAL, SOCIAL, ECONOMICA PARA PODER ENFRENTAR ANTE UNA SITUACION D
eduard

Answer:

Es importante que una persona tenga estabilidad emocional, social, y economica ante una situacion de embarazo para poder darle buena vida a el ser que lleva dentro.

Explanation:

Es importante tener estabilidad mental para pensar que hacer y como cuidar al bebe, y ser positvos.

Es importante tener estabilidad social para brindarle un ambiente amistoso.

Es importante tener estabilidad economica para poder aportar a las necesidades del bebe.

3 0
3 years ago
What 3 things pass through a cell using passive transport?
Hunter-Best [27]
A bag of blood or cells
7 0
4 years ago
Other questions:
  • An ecologist conducts a greenhouse experiment to study the effect of water concentration added to soil on the productivity of su
    12·1 answer
  • Provides great strength through parallel bundles of collagenic fibers found in tendons
    14·1 answer
  • The water cycle and the carbon cycle involve all of the following except
    8·2 answers
  • Declining function of the ______ system directly affects an older adult's ability to shop for, prepare, and consume foods at hom
    8·2 answers
  • You are an experienced naturalist and biologist and you observe two birds mating that you do not believe are members of the same
    12·1 answer
  • Create a Venn diagram comparing and contrasting plant and animal cells
    15·1 answer
  • Peter has just had surgery and is on nasogastric suction. this involves removing fluids from the stomach through a tube. the new
    5·1 answer
  • 8. In the 1940s, the scientist J.B.S. Haldane linked many human red blood
    14·1 answer
  • Cancer is caused by abnormal growth is due to a genetic mutation. Which of the following can cause this genetic mutation? (Choos
    10·1 answer
  • please help me this is due soon :(( giving brain liest for whoever does it right, and it does it in there own words, ITS OK IF A
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!