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kari74 [83]
2 years ago
10

A cross country runner runs 8 km in 2 minutes. What is his speed?

Biology
1 answer:
oee [108]2 years ago
5 0

The speed of the cross country runner is equal to 4 km/min.

<u>Given the following data:</u>

  • Distance = 8 km.
  • Time = 2 minutes.

To determine the speed of the cross country runner:

Speed can be defined as the distance covered by an individual per unit time and it can be measured in kilometer per minutes (km/min).

Mathematically, speed is given by the formula;

Speed = \frac{distance}{time}

Substituting the given parameters into the formula, we have;

Speed = \frac{8}{2}

Speed = 4 km/min.

Read more: brainly.com/question/13102821

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5. Homozygous - a pair of genes that are identical in the way they influence a trait.

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Here's a little bit more on the topic to help you out in the future:

Alleles are variant forms of genes. Each allele is found in a specific location of a chromosome and that location determines the trait that will be expressed.

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A dominant allele is expressed physically while a recessive allele is the trait that is masked. If both alleles are present, the dominant allele usually masks the recessive allele. This phenomenon is called <u>complete dominance</u>. There are some traits where both alleles are equally expressed, which is called <u>co-dominance. </u>

Genotype is the set of genes present in an organism that is responsible for specific traits. Phenotype on the other hand is the physical expression of the trait, which depends on the genotype of the organism.

Alleles come in pairs, they could either be homozygous or heterozygous.

Homozygous pairs consist of either 2 dominant alleles or 2 recessive alleles. The genotype would look something like this:

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