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Natali5045456 [20]
3 years ago
14

What is proof that all living things have a common ancestor?

Biology
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

Vestigial Structures

Explanation:

These rudimentary (basic) structures are often homologous to structures that correspond in related or ancestral species.

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Identify a signal the brain sends out after the nervous system sends the signal that pH has dropped.
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In response to a notification of a <u>decrease</u> in blood pH by the nervous system, the brain sends signals to the external intercostal muscles and the diaphragm.

<h3>What is blood pH?</h3>

Blood pH can be defined as a measure of the molar concentration of hydrogen ions that are present in the blood of a living organism, with respect to its acidity, neutrality or alkanlity (basicity).

In response to a notification of a <u>decrease</u> in blood pH by the nervous system, the brain would send signals (impulses) to the external intercostal muscles and the diaphragm through its respiratory center, so as to help the living organism increase its breathing rate and the volume of its lungs during inhalation.

Read more on blood pH here: brainly.com/question/11209525

6 0
2 years ago
What adaptations would be found in leaves located in a desert, tropical rain forest, and aquatic environment?
amid [387]

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14. Karim brings a chair from the backyard into his house and is going to stack it on top of another chair. Both chairs are the
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(C.)

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