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Leno4ka [110]
3 years ago
6

What is the purpose of having a control and a variable in an experiment?

Biology
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

a control helps to increase the reliability of the results. it allows a scientist to compare it to other group(s) in an experiment. if a scientist notices a significant different btwn the control and the other groups, he can logically conclude that the independent variable has an impact on the dependent variable.

a variable is any factor, trait or condition that can exist in differing amounts or types. there are usually three tpes of variables in experiments: the independent, dependent and contolled. the independent variable variable is the one that is changed by the scientists to figure it's affect on something.

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Match the following.
lianna [129]

Answer:

The correct match is given below:

Explanation:

  1. A flower containing a pistil, stamen, calyx, and corolla – Complete flower. When a flower consists of essential whorls pistil and stamen and accessory whorls calyx and corolla, the flower is said to be complete.
  2. The collective term for the petals of a flower- Corolla. The corolla is a accessory whorl which consist s of its unit called petal.
  3. It has pistils, but no stamens - Female flower. A flower with only pistil is called unisexual pistillate flower.
  4. A stalk which supports the anther – Filament. A typical stamen consists of an anther, connective and a filament.
  5. A flower that lacks one or more of the following parts: pistil, stamen, calyx, or corolla corolla.—Incomplete flower. A flower which lacks any of the essential or accessory whorl is called incomplete flower.
  6. A flower that has male parts only – Male flower.  A flower with only stamen is called unisexual staminate flower.
  7. A spore produced by meiosis – Meiospores. Spores can produced by mitosis or meiosis. If it is produced as a result of mitosis it is said to be mitospores.    

5 0
3 years ago
On a construction site, a worker moves some debris and a bulldozer moves a different pile of debris Which of these best explains
bonufazy [111]

Answer:

The correct answer is - they are both systems that are performing similar functions.

Explanation:

In the given question there are two different entities that do a similar kind of work or perform similar functions, however, the systems are different as one system involves the manpower of a worker whereas the other system involves the high power of a bulldozer.

The work is similar but the amount of the work varies as manual work done by a worker is less in comparison to the bulldozer.

8 0
3 years ago
What can be recycled to form new paper products?
Dima020 [189]

old useful paper that someone threw in the trash

7 0
3 years ago
Read 2 more answers
Would it be easier for an aircraft carrier to launch planes traveling against the wind (headwind) or with the wind (tailwind)? W
VLD [36.1K]

Answer:

Should be with the wind as if it was against the wind it would be pushed back

Explanation:

3 0
3 years ago
Is it enough for a female to have 1 dominant gene, or do both genes have to be dominant for her to have a disease (for example i
Free_Kalibri [48]

Answer:

In this case most diseases are recessive, but If there is even one dominant allele then it will show over

Explanation:

hope it helps

4 0
3 years ago
Read 2 more answers
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