Why must all conditions except the independent variable be held constant for all experimental treatments?

Answers

Answer 1

Answer: Uhm... I believe you mean a situation when we examine a relation between two variables. In this case all other conditions must remain as constant as possible because they could affect a result and then the conclusions could be false. ie. you examine a relation between temperature and frequency of cell division/organism's activity, then you should stabilize air pressure, food composition, bacterial flora in experimental room... etc. of course when you conduct research in a field, ie. ecological research you can't do any of that but then you are obliged to explain possible aberrations of your results in an article's discussion.

Related Questions

Which of the following is a type of plankton? shark algae squid crab
Which of the following does NOT have a part in controlling the balance of an ecosystem?Consumers Decomposers Sun Producers
Which structure helps produce,process and transport protein within the cells?
Which discovery could provide evidence against the theory of evolution? A. primate and trilobite fossil in the same rock layer B. human gene in birds, fish, insects and plants C. a living whale with a basic hip bone structure D. bat fossil with a different limb structure than modern bats
Where can water in the gaseous state be found?

Chemical and gaseous exchange takes place __________.

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Chemical and gaseous exchange takes place only across capillary walls

Sorry for the late answer but I hope that's still help !

At the end of cytokineses, how many daughter chromosomes will be found in each cell?

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In mitosis which produces body cells, each daughter body cell would have 46 chromosomes.
But during meiosis which produces sex cells, each daughter sex cell would have 23 chromosomes.

The spheres that only earth has are a _____.A.) hydrosphere and lithosphere
B.)hydrosphere and atmosphere
C.)hydrosphere and biosphere
D.)hydrosphere and cryosphere

Answers

Answer:

The correct answer is option C, hydrosphere and biosphere

Explanation:

It is the planet earth that consists of hydrosphere (water ) and biosphere (living things) that are distinctive of other planets. Most of the planets have atmosphere but they are not of the same quality as that of planet earth that could support life. Also some planets have frozen water (cryosphere) beneath their surface crust such as moon , venus etc. and lithosphere is present in all the planets with distinctive features and characteristics from each other.

Actually it’s C.ALL planets have a atmosphere but it’s toxic. We have a BIOSPHERE that’s what makes things LIVING.

Salt, sand, water, or stones are __________ substances found in nature.A) mineral

B) hypothesis

C) energy

D) force

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Salt, Sand, Water, Stone are Mineral

Organisms use different types of adaptations to aid in their survival. One type of butterfly mimics a dead leaf to evade predators. What type of adaptation is this?a. Biochemical
b. Ecological
c. Structural
d. Physiological

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The correct answer is option C, that is, structural adaptation.

All the species exhibit adaptations, which assist them to thrive and survive. Structural is one of the kinds of adaptations, these refer to the physical characteristics of an organism.

Structural adaptation refers to the feature in an animal or plant's body, which assists it to thrive in its surroundings. The examples are possessing the tendency to retain water, and camouflage that is protective coloration.

When one type of butterfly mimics a dead leaf to evade predators this would be referring to a "ecological adaptation" since it has to do mostly with the environment.

Which one of the following discoveries involving DNA happened first?

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In 1944, Oswald Avery identifies DNA (Deoxyribonucleic Acid) as transforming principles. This famous genetic scientist has made great efforts for many steps to find what happened after combinations of some bacteria. After purification, he found a new substance which was a nucleic acid, involving the discovery of DNA after further analysis.

Other Questions

Which of these statements is NOT a characteristic of the cladistics system?It shows the "rank" of the organism. It shows the probable sequence of origins. It shows shared, derived characteristics.

What connection do all living things have with each another

MAIN IDEA List and describe the types of cellular transport.

A root is absorbing water from the soil. Which route will the water travel inside the root? A. Cambium --> phloem --> xylem --> stele --> endodermis --> cortex --> epidermis/// B. Xylem --> phloem --> endodermis --> stele --> epidermis --> cortex --> cambium ///C. Epidermis --> cortex --> endodermis --> stele --> xylem --> phloem --> cambium