Ask question

Ask question

All categories

3 years ago

8

Zoe forgets to wash her hands before handling some samples in Petri dishes, and as a result, some of the samples become contamin

ated. What is a likely source of error in this experiment

1 answer:

Degger [83]3 years ago

4 0

The germs from her hands mixed with those in the petri dishes and some were contaminated

You might be interested in

Why is Earth's outer core hotter than Earth’s oceanic crust? Earth’s oceanic crust is denser than Earth’s outer core is. Earth’s

Phantasy [73]

Answer: D. Earth’s outer core is deeper within Earth than oceanic crust is

5 0

3 years ago

Read 2 more answers

What is the common language for scientific naming

Mekhanik [1.2K]

The common language that's commonly used for branding scientific names for animals and other types of plants is the Latin language. If you research the different terms used for scientific names, they have a meaning that goes in relationship to the animal or plant in question.

5 0

3 years ago

Which era spans the least amount of time on the<br> geologic scale?

Ludmilka [50]

Answer:

Trilobites

Explanation:

3 0

3 years ago

Testing hypotheses often involves designing experiments. Which of the following is the factor that is observed and measured in a

Ksju [112]

The correct answer is: dependent variable.

There are two main variables in an experiment: the independent and dependent variable.

The experimenter changes the independent variable and that has the influence on dependent variable. So, the effect on the dependent variable is tested (observed and recorded).

5 0

2 years ago

Read 2 more answers

If the offspring of a cross between two autosomal traits show a phenotypic ratio of 0 dom/dom : 0 dom/rec : 1 rec/dom : 1 rec/re

Elis [28]

The parents are of genotype heterozygous dominant and homozygous recessive. Supposing the dominant allele is N and the recessive allele is n, one of the parents will be Nn while the other nn. The phenotypic (based on visible characteristics) ratio will be 1:1 for dom/rec and rec/rec as indicated in the diagram below.

5 0

2 years ago