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maks197457 [2]
3 years ago
7

Where does the esophagus lead to in a frog?

Biology
1 answer:
irina1246 [14]3 years ago
5 0

The tube that connects the mouth to the stomach.

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A major cigarette manufacturing company releases a new cancer study stating there is no link between cigarette smoke and cancer.
gogolik [260]
It depends on what you’re learning, a possible answer is bias.
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3 years ago
explain how natural selecin oacting on allele frequencies of a gene that controls body coloraiton can result in populations of 3
Aleksandr [31]

Answer:

Answer below

Explanation:

Well when natural selection occurs, genes that don't benefit the speicies, or more accurately, harm it by ruining camoflague. Natural selection can result in one creature evolving into 3 different species when those creatures get put into different environments that promote genetic mutations that help them survive. After a long while of genetic mutations coming and going to adapt to their environment, those three members of the species are no longer the same species because they've all adapted to different environments.

6 0
2 years ago
For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to
posledela

Answer:

The correct answer will be option-E

Explanation:

Hershey and Chase's experiment was performed to test whether DNA serves as the genetic material or protein.

To perform experiment they grew bacteriophage into radiolabeled phosphorus and sulfur compounds. The phosphorus is an integral part of the structure of DNA whereas proteins contain sulfur in their structure.  

In the given condition if radiolabeled nitrogen is utilized then the experiment will fail as the structure of proteins also contains an amino group( NH₂) in their structure as well as DNA. The scientist will not be able to identify whether the DNA is the genetic material or protein.

Thus, option-E is the correct answer.

7 0
3 years ago
Which factor below would be least likely to cause a mutation in the cells of an organism.
USPshnik [31]
A) A sound wave

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3 0
3 years ago
I need help with my science
IgorC [24]

Answer:

A theory is the most logical explanation of events that occur in nature. The explanation often results from the use of the scientific method. First, a problem must be stated. Then, after gathering information, a hypothesis, or logical solution, is formed. The solution is then tested in an experiment. The factor that is tested in an experiment is called the variable. This factor is not contained in the control setup. Sometimes principles of chemistry, the study of how substances change and combine, are involved in experiments. At other times, principles of physics are instead.

The metric system is used for all measurements in science. Some basic units in this system are the liter for volume, the kilogram for mass, the degree Celsius for temperature, and the meter for length. Sometimes, the density of a substance, or its mass per unit volume must be measured. If dimensional analysis is needed, a conversion factor must be used.

Explanation:

3 0
3 years ago
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