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ella [17]
3 years ago
8

"What is the relationship between reliability and validity? Is it possible for a measure to be reliable and invalid? Conversely,

is it possible for a measure to be unreliable and valid?"
Biology
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

Explanation:

Reliability has to do with how consistent the measures in an experiment are, this has to do with how reproduceable those measures are under the same circumstance. While validity has to do with the correctness or accuracy of measures in an experiment.

It is possible for a measurement to be unreliable and yet valid because even reliable (consistent measures) may not always necessarily be correct. Experiments involving living things sometimes deviate from normal measures due to several factors that cannot be explained but that does not mean that the results are invalid.

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Which structures are part of the appendicular skeleton?
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It is the rib cage (thoracic cage)
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What is pollination? ​
artcher [175]

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Pollination is the transfer of pollen from a male part of a plant to a female part of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind.

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Genetic drift is a change in the gene pool due to chance. Genetic drift increases as the
defon

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c

Explanation:

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3 years ago
Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color
trasher [3.6K]

Answer:

This question is incomplete, the complete question is:

Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color. Red eye color is dominant to brown eye color. Use the Punnett square to determine the ratio of offspring with: Brown body and red eyes : Brown body and brown eyes : Black body and red eyes : Black body and brown eyes :

The answer is:

Brown body and red eyes : 9

Brown body and brown eyes : 3 Black body and red eyes : 3 Black body and brown eyes : 1

Explanation:

This question is a typical dihybrid cross involving two different genes. One coding for body color and the other for eye color. The allele for Brown body color (B) is dominant to the allele for black body color (b) in the first gene while the allele for Red eye color (R) is dominant to the allele for brown eye color (r) in the second gene.

In a cross between two parents that are heterozygous for the two genes i.e. BbRr × BbRr, each parent will produce the following possible allelic combinations of gametes:

BbRr- BR, Br, bR, and br

Using these gametes in a punnet square (see attached image), 16 possible offsprings will be produced in the ratio 9:3:3:1 where the offsprings and their possible genotypes are;

Brown body and red eyes (B_R_): 9

Brown body and brown eyes (B_rr): 3

Black body and red eyes (bbR_): 3

Black body and brown eyes (bbrr): 1

8 0
3 years ago
Someone pleaseeeee help me :(((
notsponge [240]

Answer:

Oxygen

Explanation:

Plants release oxygen during photosynthesis and need light.

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