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docker41 [41]
3 years ago
15

The common ancestors of birds and mammals were very early (stem) amniotes, which almost certainly possessed three-chambered hear

ts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The four-chambered hearts of birds and mammals are best described as ________.
Social Studies
1 answer:
sashaice [31]3 years ago
8 0

Answer:

homoplasies

Explanation:

According to my research on studies conducted by various biologists, I can say that based on the information provided within the question the four-chambered hearts of birds and mammals are best described as homoplasies. In the context of biology, homoplasy is a trait or character that is found in a set of species but not present in their common ancestor.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Consent to participate in research is an ongoing process. Which of the following strategies would help ensure that participation
jeka57 [31]

Answer:

The correct answer is designing the survey so that subjects are not forced to answer one question before going to the next.

Explanation:

When talking about an investigation of sensitive and controversial issues, the investigator has to have the tact to obtain the necessary information from the participants, whereby so that you can use different strategies.

In this case, giving the option to pass the question to the participant if he does not feel ready to answer it allows him to return to it if he is prepared at some time while answering the survey. So the researcher can be sure that the information does not is biased.

<em>I hope this information can help you.</em>

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3 years ago
According to the Preamble, which responsibility of the Constitution most relates to the United States’ interactions with other n
olya-2409 [2.1K]

The correct answer is "provide for the common defence."

According to the Preamble of the U.S Constitution, the aforementioned part about providing for the common defence actually means that the nation should be well prepared against foreign interventions of any kind.

This kind of preparation does not only refer to military preparation but also refers to protecting the country at any costs from external forces.

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3 years ago
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Define and describe osmosis
belka [17]
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2 years ago
The U.S constution outlines the goals of the government t or f
Mashcka [7]

Answer:

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Explanation:

If you need anymore help just sent me a friends request and dm and I wll be more than to happy to help you some more.

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To focus on one aspect of a situation and simultaneously exclude all other aspects is called
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