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Lina20 [59]
3 years ago
6

Evidence about ancient climates indicates that

Biology
1 answer:
chubhunter [2.5K]3 years ago
6 0
<span>Evidence about ancient climates indicates that
</span>glacial ice once covered much of what is now India and Australia
There was once glacial where these countries are located now due to heat it all melts
so correct option is A
hope it helps
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Will more air inside a basketball make it bounce higher?
marysya [2.9K]

The outcome variable, test variable, and controlled variable for each question is as follows:

  • outcome variable = bounce height; test variable = volume of air, and  controlled variable = basketball
  • outcome variable = cleaning property; =  test variable = type of cleaner, and  controlled variable = cloth
  • outcome variable = heat absorbed; test variable = fabric color, and  controlled variable = amount of sunshine
  • outcome variable =  plant size, test variable = seed size, and  controlled variable = sunlight
  • outcome variable = flower freshness, test variable = sugar added to water, and controlled variable = sunlight
  • outcome variable = adhesion of tape; test variable = differences surfaces, and controlled variable = paper
  • outcome variable =  volcano eruption, test variable =  ratio of vinegar to baking soda, and controlled variable = container or bottle

<h3>What are variables in an experiment?</h3>

A variable is any factor in an experiment that can be manipulated, controlled for, or measured.

There are three types of variables in an experiment:

  • Dependent variable or outcome variable
  • Independent variable or test variable,
  • Constant variable or controlled variable

The Dependent variable or outcome variable depends on changes in the independent variable.

An independent or test variable is the variable that stands alone and is not affected  by other factors in the experiment.

The constant or controlled variable is unchanged.

The outcome variable, test variable, and controlled variable for each question is as follows:

1. Will more air inside a basketball make it bounce higher?

  • outcome variable = bounce height;  test variable = volume of air, and  controlled variable = basketball

2. Do ''green'' cleaners clean as well as store bought cleaners?

  • outcome variable cleaning property; =  test variable = type of cleaner, and  controlled variable = cloth

3. Which colors of fabric absorbs most heat?

  • outcome variable = heat absorbed; test variable = fabric color, and  controlled variable = amount of sunshine

4. Do bigger seeds make bigger plants?

  • outcome variable =  plant size, test variable = seed size, and  controlled variable = sunlight

5. Does sugar added to water improve cut flower freshness?

  • outcome variable = flower freshness, test variable = sugar added to water, and controlled variable = sunlight

6. How do differences in surfaces affect the adhesion of tape?

  • outcome variable = adhesion of tape; test variable = differences surfaces, and controlled variable = paper

7. What ratio of vinegar to baking soda produces the best chemical volcano eruption?

  • outcome variable =  volcano eruption, test variable =  ratio of vinegar to baking soda, and controlled variable = container or bottle

In conclusion, changes done to the test variable results in changes in the outcome variable.

Learn more about test variable at: brainly.com/question/25223322

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6 0
1 year ago
En un experimento, se prueba el efecto de cambiar el pH en una reacción enzimática. ¿Cuál podría ser una variable dependiente en
stich3 [128]

Answer:

velocidad de reacción

Explanation:

Las enzimas son proteínas que catalizan reacciones, es decir, aumentan la velocidad de reacción. Si se quiere evaluar el efecto de cambiar el pH en una reacción enzimática, se debe realizar la reacción a distintos valores de pH e ir midiendo la velocidad de reacción. Por lo tanto:

pH: variable independiente

velocidad de reacción: variable dependiente

La velocidad de reacción podría medirse a través de la cantidad de producto que se forma por unidad de tiempo, o a través de la cantidad de sustrato que se consume por tiempo.

4 0
2 years ago
Pls find the full answer of this questions also draw bargraph​
LUCKY_DIMON [66]

SEE IMAGE FOR BAR GRAPH

Explanation:

<em>M</em><em>U</em><em>L</em><em>T</em><em>I</em><em>P</em><em>L</em><em>E</em><em> </em><em>C</em><em>H</em><em>O</em><em>I</em><em>C</em><em>E</em><em> </em><em>Q</em><em>U</em><em>E</em><em>S</em><em>T</em><em>I</em><em>O</em><em>N</em><em>.</em><em>.</em>

<em>1</em><em>)</em><em>F</em><em>O</em><em>O</em><em>D</em>

<em>2</em><em>)</em><em>N</em><em>O</em><em>N</em><em> </em><em>-</em><em>G</em><em>R</em><em>E</em><em>E</em><em>N</em><em> </em><em>P</em><em>L</em><em>A</em><em>N</em><em>T</em><em>S</em><em>.</em><em>.</em>

<em>3</em><em>)</em><em>D</em><em>E</em><em>C</em><em>A</em><em>Y</em><em>I</em><em>N</em><em>G</em><em> </em><em>W</em><em>A</em><em>S</em><em>T</em><em>E</em>

<em>4</em><em>)</em><em>G</em><em>R</em><em>O</em><em>W</em><em>T</em><em>H</em><em> </em><em>O</em><em>F</em><em> </em><em>F</em><em>U</em><em>N</em><em>G</em><em>U</em><em>S</em>

<em>5</em><em>)</em><em>P</em><em>A</em><em>R</em><em>A</em><em>S</em><em>I</em><em>T</em><em>E</em>

6 0
3 years ago
In Labrador retriever dogs, coat color is determined by the interaction of two genes (pigment and deposition of pigment). This i
Shtirlitz [24]

Answer 1,2,3,4:

As both are heterozygous therefore Male genotype will be (BbEe) and the genotype of female will be (BbEe). While both will have the phenotype black.

Parent Genotype

Male X Female

BbEe X BbEe

Possible gametes from Parents

Male X Female

BbEe X BbEe

(BE) (Be) (bE) (be) X (BE) (Be) (bE) (be)

...

F1  generation will have following genetypic ratio

Black Labrador = 9  = B_E_

Brown Labrador = 3  = bbE_

Yellow Labrador = 3  = B_ee

Yellow Labrador = 1  = bbee

Furthermore, the phenotypic ration will be

Black Labrador = 9

Brown Labrador = 3

Yellow Labrador = 4

6 0
3 years ago
What are the two major methods by which cells communicate to coordinate their functions?.
Anni [7]

Chemical messengers and the Electrical signals are the two main methods by which cells communicate with each other to coordinate their functions and metabolic activities.

According to biologist, A cell communicates through chemical messengers, by sending the chemical signals to other cells and also receive that signal from another cell. Similarly, Electrical signals or impulses also work in the same way.

Therefore, body contains many types of lipids which works as a chemical messengers also electical signal or impulses can easily travel throught these lipids. Cell uses these chemical messengers and electrical impulses to communicate with other cell. Although, In order to trigger a response, these signals are transmitted across the cell membrane of the cell.

Learn more about cell communication here

brainly.com/question/18223077

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7 0
10 months ago
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