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Alja [10]
2 years ago
15

How many variables are changed in a controlled experiment

Biology
1 answer:
Snowcat [4.5K]2 years ago
8 0

Answer:

One

Explanation:

In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.

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Use Punnett square to predict the outcomes for the following crosses:
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PP x Pp
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Pp x pp
Genotype: 0% PP, 50%Pp, 50%pp
Phenotype: 50% purple, 50% white

Pp x Pp
Genotype: 25% PP, 50%Pp, 25%pp
Phenotype: 75% purple, 25% white

pp x PP
Genotype: 0% PP, 100%Pp, 0%pp
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I hope this helped
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3 years ago
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An ionic bond forms when​
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Explanation:

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The plasma proteins involved in fighting infections are
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Plasma proteins account at least 8% of the plasma, they contribute to osmotic pressure and maintain water balance in blood and tissues, other functions includes transport and enzymatic activities. Plasma proteins include albumin, fibrinogen and globulin (alpha, beta and gamma). Globulin proteins may be used to fight infections such that gamma globulin antibodies are released by the plasma during immune response.
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3 years ago
Compared to a polygenic trait, a single-gene trait tends to have.
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Answer:

the answer is a fewer phenotypes

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This organism uses its whiplike flagellum to propel itself through water. It has chloroplasts that allow it to perform photosynt
Flura [38]

Answer:

Bacteria

Explanation:

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