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Aliun [14]
3 years ago
7

The change that occurred in peppered moths is an example of

Biology
2 answers:
mojhsa [17]3 years ago
5 0

Answer:

I think it's D, but it could be B.

Explanation:

Masteriza [31]3 years ago
5 0

Answer:

B. natural selection

Explanation:

when a species needs to breed the males often compete and the stronger of them usually prospers, causing them to be more likely to breed.

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Identifying the functions of the structures of the excretory system:
aev [14]

Answer:

A Carries urine to the bladder

B excretes urine out of the body

C stores urine temporarily

D produce urine

Explanation:

5 0
3 years ago
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What is the purpose of using multiple control groups in an experiment
mamaluj [8]

Answer:

The independent variable is "controlled" or held constant in the control group. A single experiment may include multiple experimental groups, which may all be compared against the control group. The purpose of having a control is to rule out other factors which may influence the results of an experiment.

Explanation:

6 0
3 years ago
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In a wild-type strain of Drosophilathe size of a gene from the start to stop codon is calculated to be 2000 nucleotide pairs. Ho
Kruka [31]

Answer:

The correct answer is option E) "The presence of one or more introns".

Explanation:

Introns are non coding sequences located within genetic sequences that are removed during RNA maturation by a process known as RNA splicing. A gene that has 2000 nucleotide pairs but is translated into a mRNA molecule with 1200 nucleotides most likely have one or more introns that in conjunction are of 800 nucleotides in size. Once the intros are removed from the mRNA molecule the coding sequence is ready to be translated into a protein.

7 0
2 years ago
If you could genetically modify a livestock organism, what would you modify and what
alexdok [17]

Answer:

Genetic modifications to livestock would most likely suit to increase their longevity and marketability.

Explanation:

One of the bigger problems facing livestock is disease. Genes for bacterial resistance would likely increase the yield of livestock over time. Additionally, livestock raised in hot/cold climates could benefit from genes that adapt them better to these conditions. For example, cattle raised in hot conditions would benefit from genes that increase sweating or decrease passive water loss like through defecation.

Additionally, tailoring livestock to consumer desires would increase marketability, and therefore profit. For example, an ideal steak has a set fat content. Genetically modifying cows to maintain this fat content would increase the value of its meat.

8 0
2 years ago
The skeleton provides a framework for<br> and soft tissue attachment
Aleks [24]

Answer:

that sounds like any other skeletal structure

Explanation:

humans

7 0
3 years ago
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