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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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Explanation:

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3 years ago
What is one way of communicating all available information about the training event to your subordinates?
kow [346]

One method of giving your subordinates access to all the information about the training event is through an operations order.

<h3>What does a procedure order accomplish?</h3>

An instruction sent by the leader to his subordinate leaders to ensure the coordinated execution of a certain action is known as an operation order (OPORD). The briefing is organized in a five-paragraph structure to ensure thoroughness, aid in understanding, and support subordinate leaders' compliance with the directive.

<h3>What looks like an OPORD?</h3>

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2 years ago
In England, are white cats believed to be?
kramer
Not sure but black are bad so i would say b or d 
3 0
3 years ago
If the cords can sustain a force of 1360 n without breaking, what is the maximum chandelier weight that can be supported?
Naddika [18.5K]

The maximum chandelier weight that cord can be suported is 138.77 kg.

According to the Newton's second law of motion, the force of gravity is exerted on the chandelier is downward.

Weight is another word for the force of gravity mg. We can solve for the mass using the formula W=F g=mg or w=mg as Weight W is just another word for the force of gravity Fg.

And the mass of the object by the magnitude of the acceleration due to gravity is always 9.8ms(square).

we know that a cord can sustain the force of 1360 n equivalent to weight.

place the value in above equation,

1360= m(9.8)

m= 138.77

so, the maximum chandelier weight that cord can be suported is 138.77 kg.

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2 years ago
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I done it to other ppl hair but things with a strong smell:

Getting a perm.

Getting a relaxing.

Getting your hair dye.

Getting your hair flat iron.

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3 years ago
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