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seropon [69]
3 years ago
14

How many factors should a well-designed experiment test at one time? A. 1 B. 2 C. 3 D. depends on the number of experiment varia

bles
Biology
2 answers:
pishuonlain [190]3 years ago
8 0
A well-designed experiment should<span>  </span>test  1 factor at one time.
devlian [24]3 years ago
3 0
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.
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Answer:

They protect the body from infectious agents.

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They signal the immune system to destroy pathogens.

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A population of Purple Gorillas feeds entirely on plants. But some of these Gorillas are good at digesting Plant A, while others
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The species has a higher chance of survival as there are 3 plant types, even if 2 of those die out, there's a portion of the purple gorillas that can still eat the remaining plant type
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Do some organisms outcompete eachother
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3 years ago
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A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of <u>evolutionary genetics.</u> The mutation will lead to <u>all the bacteria becoming resistant to the antibiotic.</u><u> </u>

Genetic evolution :

Evolutionary genetics examines the relationship between genetic variation and evolutionary change. As a result of the recent expansion in the availability of whole genome sequence data, large amounts of genetic data are being produced at an increasing rate, making programming an indispensable tool for researchers.

The spread of antibiotic resistance among pathogenic bacteria is a straightforward and elegant example of adaptation through natural selection. Through mutations that alter the biological targets of antibiotics or by obtaining resistance genes from other bacteria, microorganisms can develop resistance to antibiotics.

Learn more about evolution here :

brainly.com/question/14256554

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6 0
2 years ago
What does a bone's density relate to?
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