Scientists include controls in their experiments why is a control important

Answers

Answer 1
Answer:

Answer:

"The control experiments are basically done to compare the main experiment and the experiment done in controlled manner so as to observe the changes and also to minimize the changing effect"

Explanation:

The scientists include the control in their experiments which can help them to minimize the changes and can observe the changes meticulously.  In control experiment the observation are made with minimum effect of the variables leaving the independent variable. This type of experiments help in increasing the reliability of the output. The control experiments are basically done to compare the main experiment and the experiment done in controlled manner so as to observe the changes.


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What role do pioneer species play in succession?
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Which best describes plant classification? Nonvascular plants are grouped into seedless and seeded plants. Seedless plants are grouped into gymnosperms and angiosperms. Gymnosperms are grouped into monocots and dicots. Angiosperms are grouped into monocots and dicots.

Which of these is an abiotic infectious agent?A. Bacteria

B. Fungi

C. Parasites

D. Viruses

Answers

Answer:

c . parasites

Explanation:

parasites are abiotic in nature

The answer is A) bacteria

Which are examples of short-term environmental change? Check all that apply.tsunamis
El Niño
large asteroid and comet impacts
volcanic eruptions
global warming

Answers

Answer:one,two,four

Explanation:

Answer:

tsunamis Yeah

El Niñolarge Yeah

asteroid and comet impacts Nope

volcanic eruptions Yeah

global warming Nope

Explanation:

Frogs produce a huge number of gametes at one time - WHY do you think this is ( HINT: Finding Nemo)?

Answers

Eggs, the hint wasn't even required. Gametes are sex are an organisms reproductive cells.

PLZZZZZZ HELPPPP Draw a sketch of your completed DNA model. Label each material and the part of the DNA molecule it represents.Answer:

Answers

Answer:

DNA - Deoxyribonucleic acid, a macro molecule which has all the hereditary data or information in many living beings.

Function- DNA plays an important role in the production of proteins, along with the metabolism, and reproduction of the cells.

  • Components- Deoxyribose sugar,
  • A phosphate,
  • A nitrogenous base.( adenine, guanine, thymine and cytosine)

Explanation:

Structure of DNA:

  • The image is a simplified representation of a short DNA molecule, with deoxyribose sugar molecules in orange, linked to phosphate molecules through a special type of covalent linkage called the phosphodiester bond.
  • Each nitrogenous base is represented by a different color – thymine in purple, adenine in green, cytosine in red and guanine in blue.
  • The bases from each strand form hydrogen bonds with one another, stabilizing the double-stranded structure.

Deoxyribonucleic acid, a macro molecule which has all the hereditary data or information in many living beings.

What is Deoxyribonucleic acid?

DNA plays an important role in the production of proteins, along with the metabolism, and reproduction of the cells.

The image is a simplified representation of a short DNA molecule, with deoxyribose sugar molecules in orange, linked to phosphate molecules through a special type of covalent linkage called the phosphodiester bond.

Each nitrogenous base is represented by a different color – thymine in purple, adenine in green, cytosine in red and guanine in blue.

Learn more about DNA

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What would be an immediate effect of the construction of roads and parking lots on the transfer of energy from producers to consumers in an ecosystem? A.
a decrease in the number of producers

B.
a decrease in the number of consumers

C.
an increase in the number of producers

D.
an increase in the number of consumers

Answers

It would be A. 'a decrese in the number of producers'.

Complete the sentence:A car driver automatically brakes if a child dashes across the road.
This is called a .............................................. reaction.
Ps. something to do with neurons

Answers

re: A car driver automatically brakes if a child dashes across the road.
This is called a .............................................. reaction.
answer: reflex